5/16″-18 HSS Left Hand Round Adjustable Die 1″ OD Uncoated (Bright) DWTH1-51618LH Top Pick

Specs

Die type: HSS Left Hand Round Adjustable Die

Thread size: 5/16 inch diameter, 18 threads per inch

Outer diameter: 1 inch

Material: High Speed Steel (HSS)

Finish: Uncoated (Bright)

Direction: Left-hand

Adjustment: Fine pitch screw to separate or bring together die halves

Chamfer details: Chamfered on both faces; one side with 2 to 3 thread chamfer, the other side with 1 to 1-1/2 thread chamfer

Slot: Beveled slot to allow adjustment via machine holder screws when mounted

Quantity: 1 piece

Features

Optimized for left-hand threading tasks with a dedicated HSS geometry for longer wear life

Adjustable gap via a fine pitch screw, enabling precise control over thread engagement and finish

Chamfer configuration supports starting threads and threading close to a shoulder without rework

Beveled slot design permits adjustment from a machine holder, simplifying setup when automating operations

Round die form provides uniform pressure distribution during cutting and reduces skewing risk

Uncoated bright finish resists cosmetic staining while remaining compatible with standard cutting fluids

Physical

Shape: Round die for consistent alignment in holders

Outer diameter: 1 inch

Thread orientation: Left-hand

Finish: Uncoated (Bright)

Chamfer configuration: Both faces chamfered; 2 to 3 thread chamfer on one side, 1 to 1-1/2 thread chamfer on the other

Slot: Beveled for machine holder compatibility

Includes: One piece