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Flank Drive® Shallow and Deep Impact Sockets

1/4" Drive 6-Point Metric 4 and 4.5 mm - IMTMM4 IMTMM4.5 SIMTMM4 SIMTMM4.5 - Expanding Capabilities with Series Size Additions

Features and Benefits

  • Snap-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
  • Snap-on uses a proprietary blend of special alloy socket steel that provides long life and great strength
  • Flank Drive® wrenching system delivers up to 20% more turning power without slipping or rounding while exceeding ANSI® performance standards


Size Stock No. A B C D E
4 IMTMM4 7.912.7 12.7 22.2 4.0
4.5 IMTMM4.5 7.9 12.7 12.7 22.2 4.0
4 SIMTMM4 7.9 12.7 41.3 50.8 4.0
4.5 SIMTMM4.5 7.9 12.7 41.3 50.8 4.0

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