The Foredom H.MH-120 is an adjustable Jacobs chuck microgrinder handpiece designed for precision rotary work. Featuring a geared 3-jaw Jacobs chuck — the same style found on the popular Foredom #30 handpiece — it accepts a wide range of bits and burs from 0 to 4.0 mm (5/32") in diameter, closing all the way down to zero for maximum versatility. This handpiece plugs directly into the Foredom HP4-917 Control Box (sold separately) and is operated via the control box dial or an optional variable speed foot control.
Compared to the standard Foredom micromotor handpiece, the H.MH-120 delivers more torque while operating at a lower maximum speed of 20,000 RPM—making it well suited for heavier grinding and material removal tasks that benefit from added power over raw speed.
Features
- Adjustable geared 3-jaw Jacobs chuck accepts bits from 0 to 4.0 mm (5/32") in diameter
- Chuck closes all the way down to zero—no minimum bit size required
- Speed controlled via the HP4-917 Control Box dial or compatible variable speed foot control
- Maximum speed of 20,000 RPM with higher torque than the standard micromotor handpiece
- Plugs directly into the Foredom HP4-917 Control Box
Specifications
| Chuck Type |
Adjustable Jacobs 3-jaw chuck |
| Chuck Capacity |
0–4.0 mm (0–5/32") |
| Maximum Speed |
20,000 RPM |
| Handpiece Length |
8-3/32" (206 mm) |
| Handpiece Diameter (cord end) |
1-3/8" (35 mm) |
| Handpiece Diameter (chuck end) |
1-1/64" (26 mm) |
| Weight |
1 lb 2 oz (510 g) |
| Compatible Control Box |
Foredom HP4-917 (sold separately) |
Notes
This listing is for the microgrinder handpiece only. The Foredom HP4-917 Control Box is required for operation and is sold separately. This handpiece is not a standalone unit.
California Prop 65 Warning:
This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects or other reproductive harm.
www.P65warnings.ca.gov.
