5/16"-40 HSS Round Adjustable Die, Special | 1" OD | Uncoated (Bright) | DWTSR1-51640

Specs

• Material: High Speed Steel (HSS)
• Type: Round Adjustable Die for external threading
• Thread size: 5/16-40
• Outer diameter: 1 inch
• Finish: Bright, uncoated
• Adjustment mechanism: fine pitch screw to widen or close the die gap
• Chamfering: faces chamfered on both sides — one side with a 2 to 3 thread chamfer; the opposite side with a 1 to 1-1/2 thread chamfer for threading close to a shoulder
• Slot design: beveled to allow removal of the adjustment screw when used with a machine holder

Features

• Enables precise external threading on round stock with adjustable opening for starting threads cleanly
• HSS construction delivers wear resistance for repeated threading operations
• Chamfer configuration supports both starting threads away from shoulders and finishing near shoulders
• Beveled slot permits adjustment via the holder’s screws when mounted in a machine holder
• Uncoated bright finish facilitates inspection of thread features and reduces galling tendencies

Physical

• Thread specification: 5/16-40
• Outer diameter: 1 inch
• Material: High Speed Steel
• Finish: Bright, uncoated
• Use case: External threading on round stock; suitable for projects requiring precise starting threads near a shoulder