
Air Low-Speed Handpieces and Motors. Finish. Polish. Finesse.
Dental handpieces and motors to help you perfect those critical finishing steps.
Check out our current dental handpiece promotions.


Alegra 300 Air Low-Speed Handpieces: Excellent Ergonomics
Short, slim, and lightweight dental handpiece design with our best swivel reduces hand and wrist fatigue. Perfect for decay removal, finishing, polishing.
- Mini head design improves access and visibility
- Precision ball-bearings provide exceptional tactile feedback with a smooth and quiet operation
- High quality materials for maximum robustness and long life
See Alegra 300 Air Low-Speed Series for available handpieces.
Model | WE-56T | WE-57T | WE-66T | HE-43T |
---|---|---|---|---|
Gear Ratio | 1:1 | 1:1 | 4:1 | 1:1 |
Max Speed (rpm) | 20,000 | 20,000 | 5,000 | 20,000 |
Chuck | Push-button 2.35 mm latch burs | Push-button 1.6 mm friction grip burs | Push-button 2.35 mm latch burs | Twist-tension 2.35 mm lab burs |
Light | No | No | No | No |
Spray Ports | No | No | No | No |
Head diameter(mm) | 10.1 | 10.1 | 10.1 | n/a |
Head height (mm) | 13.01 | 13.01 | 13.01 | n/a |
Head height (w 19 mm bur) | 20.7 | 22.4 | 20.7 | n/a |
Weight (grams) | 42 | 42 | 42 | 44 |
Length (mm) | 87.9 | 87.9 | 87.9 | 87.1 |
Midwest and StarDental compatible handpieces are also available. Contact your A-dec dealer or visit the A-dec|W&H Handpiece Advisor to learn more.

W&H Quick Disconnect Air Motors Make Sterilization A Snap
For optimal infection control, the CDC recommends sterilizing detachable motors between patients. W&H Quick Disconnect air motors detach from handpiece couplers with minimal effort, making them easy to thoroughly clean and sterilize.
You'll appreciate the ultra-smooth swivel and exceptional tactile feedback. Your patients will appreciate the smooth, quiet operation.
- Quick disconnect motor/coupler design eliminates cumbersome threading
- Slim and lightweight to reduce hand and wrist fatigue
- High torque ensures faster, more efficient cutting
- Compatible with popular Midwest and StarDental handpieces
- Backed with 2-year A-dec warranty
- Requires RQ-04 coupler for non-lighted handpiece
Model | AM-20RQ | AM-20MWRQ | AM-5MWRQ | AM-20SDRQ | AM-5SDRQ |
---|---|---|---|---|---|
Handpiece Compatibility | A dec|W&H | Midwest | Midwest | StarDental | StarDental |
Max Speed (rpm) | 20,000 | 20,000 | 5,000 | 20,000 | 5,000 |
Weight (grams) | 54 | 57 | 64 | 50 | 56 |
Length (mm) | 40.2 | 54.9 | 64.2 | 42.3 | 51.8 |
Sterilizable | Yes | Yes | Yes | Yes | Yes |

A‑dec|W&H Fixed-Back Air Motors: Lightweight, Dependable
Tactile sensation and power all rolled into one lightweight, dependable motor solution. With the A-dec|W&H fixed-back air motor, you have the ability to remove tooth structure rapidly, with a light touch. It’s a motor that’s easy to control and long-lasting.
- Precision ball-bearings provide exceptional tactile feedback with a smooth and quiet operation
- Ultra-smooth swivel and lightweight reduce hand and wrist fatigue
- Powerful design creates greater cutting efficiency
Model | AM-20RM | AM-20MW | AM-5MW | AM-20SD | AM-5SD |
---|---|---|---|---|---|
Handpiece Compatibility | A dec|W&H | Midwest | Midwest | StarDental | StarDental |
Max Speed (rpm) | 20,000 | 20,000 | 5,000 | 20,000 | 5,000 |
Weight (grams) | 55 | 58 | 64 | 52 | 59 |
Length (mm) | 39 | 51.5 | 60.9 | 39 | 48.5 |
Sterilizable | Yes | Yes | Yes | Yes | Yes |
Product Literature
Support Documents
Safety Data Sheets (SDS)
Are A-dec|W&H air low-speed handpieces compatible with my existing coupler or tubing system?
Use the A-dec|W&H Dental Handpiece Overview Guide to determine the compatibility of A-dec|W&H handpieces.
How can I repair my A-dec|W&H handpieces?
A-dec offers factory-authorized repair from technicians specifically trained to service your A-dec|W&H handpieces. Get details on A-dec Authorized Handpiece Repair Center services and pricing.
What is the price of an A-dec|W&H air low-speed dental handpiece?
You can choose from different price points with different performance. Ask your local A-dec dealer about quantity pricing or bundled pricing when purchased with an A-dec delivery system.