3.8mm Dia 73mm Length HSS 9341 Round Shank Twist Drill Bit Drilling Tool 3pcs

This product is made of high speed steel 9341. Twist drill bit with round straight shank sharp spiral groove. Used widely to drill the metal(such as 0-10mm Stainless Steel sheet Aluminum or Iron plate) and marble etc. The twist drill bit is used with electrical drilling machine.(here is not included)