Irwin 4935652 5-1/2" Overall Length, Straight Drill Bit Receiver

2" Overall Length, Straight Drill Bit Receiver Compatible with Hex Shank Boring Drill Bits

6" Overall Length, Straight Drill Bit Receiver Compatible with Hex Shank Boring Drill Bits

12" Overall Length, Straight Drill Bit Receiver Compatible with Hex Shank Boring Drill Bits

1", 5/16" Diam Straight Shank, 7-1/2" Overall Length with 4-1/2" Twist, Solid Center Auger Bit Screw Point, High Speed Steel, Bright Finish, Single Cutting Edge

1/2", 5/16" Diam Straight Shank, 7-1/2" Overall Length with 4-1/2" Twist, Solid Center Auger Bit Screw Point, High Speed Steel, Bright Finish, Single Cutting Edge