m3.5 x .5 13/16" OD HSS Round Adjustable Die Special - High Performance & Durable Cutting Tool | Drill America Sets & Kits 5 Piece Drill Bit Set

5 Piece Drill Bit Set contains sizes 1/4"

Drill America - 63/64 3MT Cobalt Steel Taper Shank Drill Bit

Thread Size: 1-7/16"

Size: SG-81

m3.5 x .5 13/16" OD HSS Round Adjustable Die Special - High Performance & Durable Cutting Tool | Drill America Sets & Kits 5 Piece Drill Bit SetHSS Round Dies are for use in making new threads or re threading existing threads. They are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Round dies are chamfered on both faces, one side has a 2 to 3 thread chamfer for threading and the other side has a 1 to 1 1 2 thread chamfer for threading close to a shoulder. Adjustments are made by a fine pitch screw which forces the sides of the