The #8C Renegade Dental Handpiece is intended for use in general dentistry by licensed professionals for removing carious material, reducing hard tooth surfaces, cavity preparation, finishing tooth preparations, restorations and polishing teeth.
Device Story
The #8C Renegade is a high-speed air turbine dental handpiece; powered by compressed air (26-35 psi); activates air turbine to rotate a burr at 380,000-530,000 rpm. Features push-button autochuck; four-hole connector for air/water input and return; water/air mist for cooling. Used by licensed dental professionals in clinical settings for tooth preparation and restoration. Supplied non-sterile; requires cleaning, lubrication, and sterilization before each patient use. Output is mechanical rotation of a burr for dental procedures; assists clinicians in removing decay and shaping tooth structure.
Clinical Evidence
No clinical testing was conducted. Substantial equivalence is supported by bench testing and descriptive comparisons.
Technological Characteristics
High-speed air turbine handpiece. Materials: chrome-plated brass handle/head, 440C stainless steel waterline. Dimensions: 123.1mm length, 12.5mm x 13.3mm head. Energy source: compressed air (26-35 psi). Connectivity: 4-hole connector (ISO-B, Midwest). Sterilization: requires cleaning, lubrication, and sterilization prior to use. Biocompatibility: meets ISO 10993-1.
Indications for Use
Indicated for use in general dentistry by licensed professionals for removing carious material, reducing hard tooth surfaces, cavity preparation, finishing tooth preparations, restorations, and polishing teeth.
Regulatory Classification
Identification
A dental handpiece and accessories is an AC-powered, water-powered, air-powered, or belt-driven, hand-held device that may include a foot controller for regulation of speed and direction of rotation or a contra-angle attachment for difficult to reach areas intended to prepare dental cavities for restorations, such as fillings, and for cleaning teeth.
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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo is a circular emblem with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the top half of the circle. Inside the circle is a stylized image of three human profiles facing to the right, stacked on top of each other. The profiles are rendered in a simple, line-art style.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
October 28, 2014
Handpiece Club, Limited Liability Company C/O Dr. Tina Wu Regulatory Project Manager Aptiv Solutions 62 Forest Street, Suite 300 Marlborough, MA 01752
Re: K142063
Trade/Device Name: #8c Renegade Dental Handpiece Regulation Number: 21 CFR 872.4200 Regulation Name: Dental Handpiece and Accessories Regulatory Class: I Product Code: EFB Dated: July 29, 2014 Received: July 30, 2014
Dear Dr. Wu:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food. Drug. and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
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Page 2 - Dr. Wu
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Small Manufacturers, International and Consumer Assistance at its tollfree number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm. Also, please note the regulation entitled. "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Susan Runno DDS, MA
Erin I. Keith, M.S. Director Division of Anesthesiology, General Hospital, Respiratory, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# K142063
# 4. INDICATIONS FOR USE
| DEPARTMENT OF HEALTH AND HUMAN SERVICES | | Form Approved: OMB No. 0910-0120 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------|
| Food and Drug Administration<br>Indications for Use | | Expiration Date: January 31, 2017 |
| | | See PRA Statement below. |
| 510(k) Number (if known)<br>K142063 | | |
| Device Name<br>#8C Renegade Dental Handpiece | | |
| Indications for Use (Describe)<br>The #8C Renegade Dental Handpiece is intended for use in general dentistry by licensed professionals for removing<br>carious material, reducing hard tooth surfaces, cavity preparations, restorations, restorations and polishing<br>teeth. | | |
| Type of Use (Select one or both, as applicable)<br>2 Prescription Use (Part 21 CFR 801 Subpart D) | | Over-The-Counter Use (21 CFR 801 Subpart C) |
| PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED. | | |
| | FOR FDA USE ONLY | |
| Concurrence of Center for Devices and Radiological Health (CDRH) (Signature) | | |
| This section applies only to requirements of the Paperwork Reduction Act of 1995. | | |
| *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.* | | |
| The burden time for this collection of information is estimated to average 79 hours per response, including the<br>time to review instructions, search existing data sources, gather and maintain the data needed and complete<br>and review the collection of information. Send comments regarding this burden estimate or any other aspect<br>of this information collection, including suggestions for reducing this burden, to: | | |
| | Department of Health and Human Services<br>Food and Drug Administration<br>Office of Chief Information Officer<br>Paperwork Reduction Act (PRA) Staff<br>PRAStaff(@fda.hhs.gov | |
| | information unless it displays a currently valid OMB number." | "An agency may not conduct or sponsor, and a person is not required to respond to, a collection of |
FORM FDA 3881 (1/14)
Page 1 of 1
EF PSC Publishing Services (301) 443-6748
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# 510(k) Summary for the Handpiece Club, LLC #8C Renegade Dental Handpiece
(per 21CFR 807.92 and http://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/default.htm)
#### 1. SUBMITTER/510(K) HOLDER
Handpiece Club, LLC 6960 Westcliff Drive Las Vegas, NV 89145
| Contact Person: | Chen-Yu Chen, CEO |
|-----------------|-------------------|
| Telephone: | 702-541-9874 |
Date Prepared: July 29, 2013
## 2. DEVICE NAME
| Proprietary Name: | #8C Renegade Dental Handpiece |
|-----------------------|---------------------------------------------------|
| Common/Usual Name: | Handpiece, dental, high speed, air turbine |
| Classification Name: | 21 CFR 872.4200 Dental handpieces and accessories |
| Class: | I |
| Classification Panel: | Dental |
| Product Code: | EFB |
## 3. PREDICATE DEVICES
- · Thunder Tiger Dental Air-Powered Handpiece (K052822)
## 4. DEVICE DESCRIPTION
The #8C Renegade is a high speed air turbine handpiece with a push-button autochuck. The handpiece is powered by compressed air (26-35 psi) which activates an air turbine causing rotation of the chuck holding a burr (not supplied with the handpiece) at 380,000-530,000 rpm. The handpiece handle and head are constructed of chrome plated brass. The handpiece features a four (4) hole connector for air and water input and return. The head and burr are cooled by a water/air mist.
The handpiece is supplied non-sterile and must be cleaned, lubricated and sterilized prior to each patient use.
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## 5. INDICATION FOR USE/INTENDED USE
The #8C Renegade Dental Handpiece is intended for use in general dentistry by licensed professionals for removing carious material, reducing hard tooth surfaces, cavity preparation, finishing tooth preparations, restorations and polishing teeth.
## 6. SUMMARY OF TECHNOLOGICAL CHARACTERISTICS COMPARED TO THE PREDICATE DEVICE
The #8C Renegade Dental Handpiece is substantially equivalent to the Thunder Tiger Dental Air-Powered Handpiece (K052822) in terms of the indications for use, design (e.g., dimensions, type of chuck, type of connector), principles of operation, and technological characteristics. Both the proposed and predicate device are provided nonsterile and can be reused. The product must be cleaned and sterilized prior to each patient use.
## 7. SUMMARY OF NON-CLINICAL PERFORMANCE TESTING AS BASIS FOR SUBSTANTIAL EQUIVALENCE
Bench testing demonstrates that the #8C Renegade Dental Handpiece is substantially equivalent to the predicate device and is as safe and effective as the predicate device for the intended use described above. Additionally, the finished, sterilized device meets ISO 10993-1 biocompatibility requirements.
## 8. SUMMARY OF CLINICAL TESTING AS BASIS FOR SUBSTANTIAL EQUIVALENCE
No clinical testing was conducted to support this submission.
## 9. CONCLUSIONS DRAWN FROM NON-CLINICAL AND CLINICAL TESTS
Based on the descriptive information and performance testing, Handpiece Club, LLC has determined that the proposed #8C Renegade Dental handpiece is substantially equivalent to the predicate the Thunder Tiger Dental Air-Powered Handpiece (K052822) based on the similarities in intended use operational characteristic and functional characteristics. Differences between the two devices are minor and do not raise new safety or effectiveness issues. A side-by-side comparison of the predicate device and the proposed device is provided in the table at the end of this section.
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| Device Name | #8C Renegade Dental Handpiece<br>(Handpiece Club, LLC) | Dental Air Powered Handpiece<br>(Thunder Tiger Corp.) |
|-----------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Regulatory Status | Proposed device | K052822 |
| Indications for Use | The #8C Renegade Dental Handpiece is<br>intended for use in general dentistry by<br>licensed professionals for removing<br>carious material, reducing hard tooth<br>surfaces, cavity preparation, finishing<br>tooth preparations, restorations and<br>polishing teeth. | Thunder Tiger Dental Air-Powered<br>Handpiece, models Tiger 100, Tiger 101,<br>Tiger 200, Tiger 201, Tiger 202 are<br>intended for removing carious material,<br>reducing hard tooth structure, cavity<br>preparation, finishing tooth preparations<br>and restorations and polishing teeth. |
| Device Design | | |
| Operational Mode | 4-holes | 4-holes (feature on models #101-T4/M4<br>and #101-3T4/3M4) |
| Fiber Optics | No | No |
| Dimensions | Head: Φ12.5mm X 13.3mm<br>Length: 123.1mm | Head: Φ12mm X 12mm to Φ 12mm X<br>12.4mm<br>Length: not provided by the manufacturer |
| Type of chuck | Push-button autochuck | Push-button autochuck |
| Type of connector | ISO-B, Midwest coupler | ISO-B, Midwest coupler |
| Materials | Waterline: 440C stainless steel<br>Surface: chrome plated brass | Surface: Chrome plated |
| Specifications | | |
| Burr Extraction Force | 26 N | 35 N |
| Burr Size | 1.6 diameter<br>19mm length | 1.59-1.60 diameter<br>19-25mm and 16-21mm length |
| Water flow rate | 120mL/min | >50mL/min |
| Air pressure | 2.0bar | 1.0-3.0bar |
| Speed (rpm) | 380,000-530,000 | ≥ 300,000 |
| Lubricant | Lubricant is required | Lubricant is required |
| Sterility | Provided non-sterile, must be cleaned<br>and sterilized prior to each patient use | Provided non-sterile, must be sterilized<br>prior to each patient use |
# Table 5-1. Side-by-Side Comparison of the #8C Renegade Dental Handpiece with Predicate Device
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Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
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Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
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Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
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Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.