m13 X 1.5 Carbon Steel Hex Die Quantity:1 and the tightly mated fit

and the tightly mated fit results in a bit that won't loosen over time or under stress

Part Number: 50C125SHCSB

Part Number: Assortment Kit #487351 Pieces

Part Number: BIT-DWDRSD1-1/2

m13 X 1.5 Carbon Steel Hex Die Quantity:1 and the tightly mated fitProduct 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 DWTSMH13X1. 5 Size m13 x 1. 5 Material Carbon Steel Finish Uncoated (Bright) Size m13 Shape Hex