The Voelkel 37508 is a Tap, HSS-E, M1,4, 0.3, 40mm, to the through holes, 2,1mm, ISO2/6H. This tap is made of High Speed Steel-Extra (HSS-E) in size of M1,4, with a pitch of 0.3mm, length of 40mm, and suitable for through holes with a diameter of 2,1mm and an ISO tapping standard of 2/6H.