Light weight but extremely hard hitting chipping hammer.

We are proud to present the Mini 4-Bolt Chipping Hammer manufactured in North America with the highest quality materials and tightest tolerances. The Mini 4-Bolt delivers the power we promised for the Foundry Industry. Our patented two-step piston design cycles at 2,750 blows per minute and is ideal for cleaning castings and forgings, as well as refractory, gunite, and brick work. The rapid cycling rate delivers powerful blows to remove sand, slag, or ceramic from the impact zones and surrounding areas.
The Mini 4-Bolt hits harder than any other 10 lb. chipping hammer currently on the market. If you want to increase production, reduce downtime, and offer incentive to your workforce, then you want the Mini 4-Bolt chipper in your facility today. We realize your most valuable asset is your workforce. Offer your employees the best tool for the job. Give them the Mini 4-Bolt Chipping Hammer from Grind-All Supply. Give us a call today for more information or to purchase.

Specifications Stroke.................................................2.6" (66mm) Bore....................................................1.1" (28mm) Blows Per Minute (BPM)................................ 2750 Length........................................................14 1/4" Weight (w/ Retainer)...................................10.5 lbs. Air Inlet Thread........................................3/8" NPT Model M4BLTH.........................0.580 Hex Shank Model M4BLTR.................... 0.680 Round Shank

• unique ergonomic, lightweight designs
• harder hitting than any on the market

We offer new carbide burs, custom made burs, extended shanks, flexible shanks and more. You will find our bur resharpening and repair program has the quickest turnaround anywhere.




Our diamond coated or plated burs are available in 3/8", 1/2", or 5/8" diameter sizes on 1/4" x 3" hardened steel shanks. Call today for more information.