The hammer has two flat striking faces that are made of 4140 chromium-molybdenum steel heat-treated to 52 HRC
Part Number MMO3/8-4FSE-BN
resulting in a higher performing tool than one-piece designs • Permanent Connection – The bit is pressed directly into the socket for a permanent connection that won't loosen over time or under stress • Two Size Markings – The size is marked with a high-visibility laser marking and a permanent stamped marking that won't rub off • Friction Ring or Detent Pin Anvils – Smooth walls inside the drive end and a detent pin hole make the bit sockets compatible with both drive tool anvil types • Socket Rail – The twist-to-lock clips on the rail hold sockets securely and can be repositioned anywhere along the rail
and SUVs • Sizes are marked both with a high-visibility laser marking and a permanent stamped marking that won't wear off • 6-point socket openings provide an exact fit for hex fasteners • Radiused corners prevent fastener round-off by applying force to a fastener's flat sides
• Strong Bar Stock – The pry bar shafts are made from 3/8–5/8 inch (depending on the pry bar length) solid steel that's heat-treated to maintain strength and toughness • Angled for Prying and Positioning – Slide in between materials or under objects with the pry bar's chisel tip
1/8 Inch Flat End Hex L-Key BoltsandNuts.com The hammer has two flatTight Fit with Fasteners In order to create a reliable, tight fit with fasteners, our L keys are slightly larger in size with narrower tolerances than most competitors that follow the ASME standards Two Measures of Tolerance Control We measure our hex key tolerances from point to point and side to side to ensure the highest standards of dimensional accuracy and consistency 8660 Steel We make our L keys with 8660 nickel chromium molybdenum steel that's