E5391/4
Spiral point tap with chamfer form B with a 3.5-5xP second lead, for British Standard Fine thread BSF 1/4" with 26 TPI and Medium class of fit, dimensions according to ISO 529 standard with 6.3mm shank and 5.0mm square drive, HSS with steam tempered surface finish for 2.5xD through hole threading in plain carbon and alloy steel and ferritic and austenitic stainless steel
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Material: HSS
Lenxth x Diameter Ratio: 2.5
Overall Length (OAL): 2.5984
Connetion Diameter: 0.248
Tool Direction: Right
Diameter Size: 1/4
Thread Diameter - in: 0.25
Thread Diameter - mm: 6.35
TPI: 26.0
Thread Form: BSF - British standard fine
Shank: Cylindrical shank with Square
Usable Length: 1.0236
Grade: Steam Tempered
EDP: 201961
EAN: 7320760201961
MFG Part Number: 5976638