Irwin 323010 Hammer Drill Bit 34 in Dia 21 in OAL Twist Flute 4-Flute 5 in Dia Shank SDS Max Shank

<p>Flute geometry removes dust from the hole quickly, double tempered, shot peened, finish with copper braze material for heat resistance and reduced tip loss. The chrome vanadium shaft is through hardened to 50-53 HrC. Fits all SDS-Max, Hilti TE F, G and Y rotary hammers.</p>