
Double set screw with Allen wrench for all 1/4" round shank drill bits requiring extra reachFollows 5/8" and larger bits through hole1/4" shankOnly fits round shank Speedbor or Do it...
Double set screw with Allen wrench
for all 1/4" round shank drill bits requiring extra reach
Follows 5/8" and larger bits through hole
1/4" shank
Only fits round shank Speedbor or Do it brand bits