Metric sizes: DIN 3124/ISO 2725-1, ASME B 107.5M, E DIN EN 3709, American sizes: ASME B 107.1, Fed. Spec. GGG-W-641, SAE AS 954-E (test loads), HPQ® high performance steel, chrome plated.
This is a carbide hammer drill with 4 cutting edges for machines with SDS-max adjustment. The X-shaped carbide head with 4 cutting edges provides good results and minimizes irregularities in the drilled hole.