Rod Size for Die Threading

Thread Specification:

Examples:

#10-32 10-32	In	Numbered machine screw thread (#1 through #12)
1/4-20 1/4"-20 0.25-20	In	Fractional UNC thread (1/4" through 1")
1/2-20 1/2"-20 0.5-20	In	Fractional UNF thread (1/4" through 1")
M6 M6x1 6x1	mm	Metric coarse thread (M1 through M22)
M6x0.75 M6x.75 6x.75 6mm x.75	mm	Metric fine thread (M1 through M22)
0.255-40 .255-40 0.255"-40	In	Non-standard thread (0.06" through 1.0")

Reducing the size of a rod you want to thread with a die makes it easier to start the die,
but the real secret is to add a 30° chamfer to the end of the rod.

Die Blank Size is the Major Diameter less 10% of the Pitch.
This is about the same as common bolts.

Tooling/Fixture Plate (12" x 6")

Made from aluminum plate 3/4" thick
Plate is 6" x 12"
220 Holes tapped 1/4"-20, 72 holes for locating pins
Includes clamping kit
Designed for small work pieces

$139.95

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Collet Set, R8 Metric, Set of 10

Set of ten R8 round collets in metric sizes
Hardened and ground to close tolerance
Made of high grade tool steel
7/16" -20 drawbar thread
0.0007" (0.018 mm) maximum runout

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Lathe Chuck, 3-Jaw 3" Premium, Harlingen

Self-centering 3-Jaw lathe chuck
3" (80 mm) diameter
Radial runout maximum of ≤ 0.002" (0.05 mm)
High quality components for enhanced wear-resistance
Includes chuck key, inside and outside jaws

$139.95

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