3/8"-36 UNS X 1" OD HSS Round Adjustable Die BoltsandNuts.com 4 Flute countersinks (or machine

4 Flute countersinks (or machine countersinks) are designed for countersinking holes for centers or for enlarging existing holes

Part Number: 62C650HCS8Y/USA

Grade 5 Hex Head Cap Screws Zinc Plated

Diameter/Pitch: 7/8"-14

Part Number: BIT-DMS73-5016

3/8"-36 UNS X 1" OD HSS Round Adjustable Die BoltsandNuts.com 4 Flute countersinks (or machineProduct Description HSS 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