Wm. Sopko & Sons Co., Inc.
26500 Lakeland Blvd. 
Cleveland, OH 

Phone: 216.289.1400
Fax: 216.289.1888
Toll Free: 888.538.6673 (888.5DUMORE)


Select your Grinder type.



Hand Grinders

Series 9 - 1/4 HP

Designed for heavy duty grinding operations including grinding weld seams, snagging castings, spark testing, and porting and polishing. The high torque Dumore 1/4 HP fan-cooled motor idles at 15,000 RPM. Three heavy-duty precision grease lubricated ball bearings provide rigid spindle support. The threaded spindle allows for use of 1/4” shank mounted wheels in a collet chuck or 3/8” bore standard wheels.

Series 20-1/6 HP
9-111 - Hand grinder with straight handle and 1/4” chuck


Series 10 - 1/10 HP

Series 20-1/6 HP

Industry’s most popular grinder for precision tool and die work and all-around use. A mounting bracket that fits both Dorian and Aloris tool holders to convert the 10-351 hand grinder into a compact highly portable tool post grinder for accurate internal and external grinding is available as an accessory on your lathe. Extremely accurate, the 10-351 grinder provides exceptional ease of control with less operator fatigue and is capable of rotary filing, de-burring, cleaning, and polishing. Incorporating two grease-lubricated bearings, the Dumore advanced design motor is efficient, conserves power, and runs cooler. Precision ground chucks minimize run-out and are designed for fast changeover. A back-mounted “on/off” switch provides additional operator safety.

Kit Includes
• 22,000 RPM grinder with 1/4” chuck
• 1/8” precision chuck
• Eight mounted wheels
• Dressing stone
• 1” diameter cutoff wheel & arbor
• Wrenches
• Blow molded storage case