Description
Irwin Auger Bit Extensions add 18" to regular bit lengths. The six-flatted shank provides better chuck grips and reduces slippage, and the hex key is included.
Shank Size: 7/16" hex or 1/2" round
Overall Length: 18"
Specifications
Diameter: Maximum 1-1/16"Shank Size: 7/16" hex or 1/2" round
Overall Length: 18"