110V / 120V supply only. This unit is built for standard North American household current (110V / 120V). Running it on 220V / 240V through a voltage converter-transformer voids any warranty the equipment may have. Confirm your outlet voltage before powering on.
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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.
Specifications
Brand
Foredom
Part #
134.539
Type
Rotary Tools
Voltage
110V / 120V
Dimensions
9 in x 8.5 in x 2.5 in
Length
9 in
Width
8.5 in
Height
2.5 in
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)
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.
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