These are used for tightening of socket cap screws and bolts with pneumatic / hydraulic impact wrenches.

In stock allen bit sizes include:

• 5/8
• 3/4
• 17 mm
• 19 mm
• 22 mm
• 7/8
• 24 mm
• 1 inch
• 27 mm
• 30 mm
• 32 mm
• 36 mm
• 1 1/2
• 1 3/4
• Other sizes available through special order

Allen bit holders and allen bit sockets also in stock!

Individual allen bits, bit holders, and allen sockets are available for sale from Better Bolting Inc.