EP204-40 UNC Machine Tap Spiral Point

Spiral point tap with chamfer form B with a 3.5-5xP second lead, for Unified National Coarse thread UNC 4 with 40 TPI and 2B class of fit, dimensions according to DIN 2184-1 standard with 3.5mm shank and 2.7mm square drive, powder metallurgical HSS-E with bright finish for 2.5xD through hole threading in free machining and plain carbon steel and wrought or cast aluminium