E545BA6 BA Machine Tap Spiral Point

Spiral point tap with chamfer form B with a 3.5-5xP second lead, for British Association thread BA 6 with 0.53 mm pitch and Normal class of fit, dimensions according to ISO 529 standard with 2.8mm shank and 2.2mm 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