7/16"-20 UNF Carbon Steel Left Hex Die BoltsandNuts.com engraving occurs before chrome plating

engraving occurs before chrome plating for added corrosion resistance • Materials and Finish – The oxygen sensor socket is made from 50BV30 chromium-vanadium steel and hardened to 41–49 HRC for strength and durability

Part Number: BIT-DWDCO41/64

Part Number DWDRSD34X1-25/32

Part Number DWTSR1-1418

Tekton keys also have slightly chamfered edges (except the sizes that are too small to be chamfered) and a smooth top face to optimize engagement with fasteners

7/16"-20 UNF Carbon Steel Left Hex Die BoltsandNuts.com engraving occurs before chrome platingProduct Description Carbon steel hex dies are for re threading or cleaning bruised or rusty threads. They are the most cost effective rethreading tool available. No special holder is required for this type of die, any wrench large enough will suffice. Ideal for maintenance in the shop or field. Brand Drill America Part Number DWTHX71620LH Size 7 16" 20 Material Carbon Steel Finish Uncoated (Bright) Size 7 16" Thread Type UNF Shape Hex