E9121/4H3
Spiral flute tap Blue Shark with chamfer form C with a 2-3xP plug lead, for Unified National Fine thread UNF 1/4" with 28 TPI and 3B class of fit with H3 pitch diameter limits, dimensions according to DIN/ANSI standard with 0.2550" shank and 0.1890" square drive, powder metallurgical HSS-E with Super-B coating and 40° helix angle for 2.5xD blind hole threading in stainless steel
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Material: HSS-E-PM
Lenxth x Diameter Ratio: 2.5
Overall Length (OAL): 3.15
Connetion Diameter: 0.255
Tool Direction: Right
Diameter Size: 1/4
TPI: 28.0
Thread Form: UNF - Unified Fine
Shank: Cylindrical shank with Square
Usable Length: 0.984
Grade: SUPER-B
EDP: 7350358
EAN: 7320760752029
MFG Part Number: 7350358