• 1/4in square drive.
• SAE magnetic sockets.
• self-drilling, tapping screws.
• 6 point square drive opening,for 6 point holes.
• Hex Opening: 3/8in.
• Overall Length: 1in.
• Diameter Nose End: 5/8in.
• Diameter Drive End: 5/8in.
• Opening Depth: 1/4in.