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.

Transfer Punch Set, Sizes #1-60, 60 Piece

60 Piece #1-60 Transfer Punch Set
Range is #1 to #60
Heat treated and tempered tool steel for long life
Transfer punches are 0.0025" undersize for precise fit

$28.95

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Quick Change Tool Holder - Lathe Bit Rapid Retractor, 0XA

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Makes threading easier and safer
Made in the USA

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Electronic Digital Indicator, 0.5"

Measurement range is 0-0.5"
Resolution is 0.0005", accuracy is 0.0012"
Measures in inches or mm
Set to zero at any position

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