HSS Twist Drill Bits Set Tin-Coated Straight Shank

Before selecting key points to process parts, choose the appropriate cemented carbide type (P, M, K, S, N, etc.) according to the different materials of parts, the use of machine tools, hole accuracy, cost and other considerations; Secondly, according to the drilling precision and hole depth, choose different size and structure of the drill bit, such as two-edged, three-edged, X-type, etc.; Select different cutting parameters according to equipment and product precision.

Welcome to Behappy Crafts, we are the professional manufacturer of power tool accessories, we are specilized in drill bits, hole saw, cutting discs, etc. We have our own plant to produce different types of the twist drill bits for metal, aluminium, wood working. Our twist drill bits are processed by Roll Forged and Fully Ground, with the different angle. We can do the differnet surface treament, bright finish, black, tin coated, amber finsh etc. Our twist drill bits are fast working and dural to use. Welcome to visit us and start our cooperation. 

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