2Pcs Pivoting Bit Tip Holder 1/4" Hex Quick Release Magnetic Knuckle Bits
Shank Size: 1/4" Hex. Used for Extending all kinds of screwdriver bits, drill, batch head, screwdriver head, etc. Holder Fits Bit Tip Type: 1/4" Hex. The magnetic screw bit holder is designed to be magnetic and pivotable.