Double set screw with Allen wrench. Recommended 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 Best brand bits.
1/2 PEX Coupling
1-1/4 Poly Insert Coupling
1-1/2 Poly Insert Coupling
Faucet Handle Puller