Review on ✂️ Bosch HS1969 Square Carbide Spline: Enhanced Performance and Durability for Precision Cutting by Francisco Russell

We use this carbide head with a matching shank in the hammer to roughen the stone. This "sleeve" of the stone returns a more natural look to the cut surfaces. Unfortunately, this head cannot be fixed on the shaft and often falls off during operation. After severe hammering of many square feet of granite and other hard rock, 24 of the 25 teeth remained intact.