Ftted with a very high temperture For drilling in granite, concrete, stone, ... SQUARES SHANK HAMMER DRILL BITS1. Machined from chrome steel fitted with carbide insert brazed at a very high temperture 2. L ... .0-30.0mm; Total Length: 120-505mm5. Can be used with * HITACHI VR16, VRV16, VRT22, VRT22A, *MINDONGDiameterFlute LengthOverall LengthSIZE(mm)(mm ...