• 1/4in square drive.
• SAE magnetic sockets.
• self-drilling and tapping screws.
• 6 point square drive opening, for 6 point holes.
• Hex Opening: 5/16in.
• Overall Length 1in.
• Diameter Nose End 1/2in Diameter.
• Drive End: 1/2in Opening Depth 3/16in.