1" Drive 6-Point SAE 1-5/16" Flank Drive® Deep Impact Socket | SIM423 Tamper-Resistant mm A : 27–31

mm A : 27–31

• Size : T40

• Snap-on® uses a proprietary blend of special alloy steel that provides long life and great strength

• Heat-treated to optimize impact service life

• Five drawers to hold plenty of large tools

1" Drive 6-Point SAE 1-5/16" Flank Drive® Deep Impact Socket | SIM423 Tamper-Resistant mm A : 27–31Snap on impact sockets are heat treated to optimize impact service life with a lower hardness than hand sockets and are able to withstand repeated cycling loads of impact wrenches Flank Drive wrenching system delivers up to 20% more turning power without slipping or rounding while exceeding ANSI performance standards Applications include use on heavy duty wheel lug nuts Specifications Dimension, inches D : 3 1 4 Dimension, inches D : 3. 75 Dimension,