41H18-7 15/16 IMPACT BI Single spur, cutter, and side lip bore through creosoted poles without clogging, binding, or stopping to clear chipsExtra-long twist is ideal for boring large poles, construction timbers, and for multiple timber applicationsHex shank design for use in impact wrench drillsFull-length heat treated bit guards against bending in heavy-duty applications and strengthens the bit where the greatest strain occursBit can be resharpenedMedium-fast screw point ideal for general wood boring applications Cutting Diam 15/16 inFlute Length 15 inLength 21 1/2 inOverall Length 18 inApplicable Materials WoodHeight 1/2 inNo. of Flutes 1Point Shape Screw SpurShank Size Symbol 7/16 inShank Type HexSpiral Angle CWType Auger BitWidth 2 inWt. 1.36 lb