E0615/16NO1
Straight flute hand tap NO1 with a 6-8xP taper lead, for Unified National Coarse thread UNC 5/16" with 18 TPI and 3B class of fit with H3 pitch diameter limits, dimensions according to ANSI standard with 0.3180" shank and 0.2380" square drive, HSS with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel and copper or copper alloys
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Material: HSS
Lenxth x Diameter Ratio: 1.5
Overall Length (OAL): 2.7188
Connetion Diameter: 0.318
Tool Direction: Right
Diameter Size: 5/16
TPI: 18.0
Thread Form: UNC - Unified Coarse
Shank: Cylindrical shank with Square
Usable Length: 1.2598
Grade: Bright
EDP: 348482
EAN: 7320760348482
MFG Part Number: 5974272