6PCS Titanium Combination Drill and Tap Bits Set, 1/4" Hex Shank HSS SAE Screw Tapping Bit with Center Punch Tool for Drilling, Tapping and Countersinking (Metric M3-M10)

Specifications

About this product

6PCS 1/4" Hex HSS Combination Screw Tap Drill Thread M3-M10 with Automatic Center Punch Tool Specification: Material: High-speed steel(HSS 4341) Color: Silver Metric: M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5 Shank: 1/4" (6.35mm) hex shank Size: M3, M4, M5, M6, M8, M10 Center punch material: iron, high-speed steel punch head, brass protective coating Center punch size: 13 cm/ 5 inch in length, 1.27 cm/ 0.5 inch in diameter Usage: Suitable for drilling, tapping, cutting on soft metal, aluminum plate, iron, etc. Description : 1.High hardness, rustproof, solid and durable. 2.The advantage is opening, tapping, chamfering. 3.Self-centering point, do not need assistant center drilling or center punching. 4.Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, improve working efficiency. Features : 1. Save processing steps and time costs, improve efficiency 2. Spiral groove, within the processing thread, cutting up to exclude, and was curled applied internally threaded through holes Package include: 6 x Compound Tap Drill Bits 1 x Automatic Center Punch Tool Caution: When you use this drill bits, the material temperature will get very high, please add some water or coolant to avoid the material get smoke when using it. 【100% Satisfied 】 Contact us if you are not satisfied with it for any reason. And we promise all the issue will be solved within 24 hours. Please Note: If you recevie the package is not include the Center Punch, please contact to us. We will slove this problem at soon! .