WHITE RING machine tap, DIN 374, HSS-E, M 20 x 1.5 

stainless steel, long chipping up to 1.000 N/mm² -abrasive material - chrome-nickel alloys - for through holes VAP-coating: - improved adhesion of the coolant and Lubricant - reduces tearing of the lubricating filand the formation of cold welding Thread type: metric-fine ISO-thread DIN 13 Norm: DIN 374 Material: HSS-E