Bosch Concrete Hammer Steel HS1520 1 3 4 Inch Square 3 4 Hex Shank 16 Tooth 9 1 4 Inch Length Bushing Tool Demolition Heavy Duty Masonry Bit For Slabs Batteries Recoil Start Tub Capacity 16 Recoil Start Tub Capacity 16 cu Masonry Pavers Tool Compatibility Corded and Cordless 5 in Small Angle Grinders and Masonry Saws Pro Tip: Allow the weight of the angle grinder and the 13 Equipped with a standard 3 4 inch hex shank and a robust one piece alloy steel frame A proprietary heat treat process tempers the integrated 16 tooth square configuration head to resist thermal fracturing and withstand the extreme mechanical percussive forces of commercial hammer units