Which drill bit is the best drill bit for stainless steel?Maybe you think the rock drill bit is the best drill bit for stainless steel,maybe you think the mental cutting drill bit is the best drill bit for stainless steel,or you think the carbid drill bit is the best drill bit for stainless steel,whatever, now I will share some drill bit which I think the is best drill bit for stainless steel to you.
The twist drill is the most widely used drilling tool.
Usually，in a range of 0.25 to 80 mm in diameter. It is mainly composed of Work part and shank. The working part of the spiral groove, two twist shape, hence the name. Twist drill spiral angle mainly affects the cutting edge to angle size and strength of a cutting blade and cutting performance, usually 25 degrees to 32 degrees. Due to structural reasons, rake angle at the outer edge, gradually decreases towards the middle, chisel edge is about negative rake angle (up to 55 DEG), drilling play squeezing action. In order to improve twist drill cutting performance, according to the material processing nature of the cutting part repair ground into various shapes (such as group drilling). Twist drill shank forms of straight handle and a taper shank two, processing the former clip in the drill chuck, the latter in in the machine tool spindle or tailstock taper hole. General manufacturing with high speed steel twist drill. Insert welding hard alloy blade or crown of twist drill is suitable for machining cast iron, hardened steel and non-metallic materials etc., whole hard alloy twist drill for processing instrument parts and printing circuit board.
The cutting part of the flat drill is shovel shaped, with simple structure, low manufacturing cost, and the cutting fluid is easy to be introduced into the hole, but the cutting and chip removal performance is poor. The structure of flat drill has two types of integral and assembled. The integral type is mainly used for drilling micro holes with a diameter of 0.03 ~ 0.5 mm.