features and benefits:
- available in 6" and 12" lengths
- not for use with quick change woodboring bits
- adds 12 inches to regular bit length and follows 5/8" or larger bit through the hole
- forged of high quality tool steel and made in heavy-duty, double set screw type
for fast, rough or clean and exact holes, irwin's extensive line of woodboring drill bits provide the user with the best available tools for each application in achieving their wood drilling needs.Available in 2 in.; in.;, 6 in.; in.; and 12 in.; in.; lengths, the bit extensions give the user additional length for hard-to-reach areas.Available in 6 in.; in.; and 12 in.; in.; lengths.Not for use with quick change woodboring bits.