Spiral Tap Drill Bit Set, 6pcs Titanium Coated HSS Fluted Machine Screw Tap Kit, Hex Shank Combination Drill Tap Bit Spiral Screw Tap Set M3-M10 Drill Bit

6PCS 1/4" Hex HSS Composite Spiral Screw Tap Drill Thread M3-M10 with Automatic Center Punch Tool and 60mm Fast Connection Post 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/5inch in length, 1.27cm/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. 5. 60mm Quick Post is to change the spiral tap drill quickly without separate clamping. Because most electric drill pistol drills are three-jaw chucks, not internal hexagon sockets. Strong magnetism. 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 1 x 60mm Fast Connection Post

• Material: HSS (4341) High hardness, rustproof, solid and durable; Self-centering design: do not need additional center drilling or center punching; 60mm Quick Post is to change the spiral tap drill quickly without separate clamping. Because most electric drill pistol drills are three-jaw chucks, not internal hexagon sockets. Strong magnetism.
• Metric: M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5.Shank:1/4 inch (6.35mm) hex shank. HSS Drill Bits Metric Thread Spiral Screw M3 M4 M5 M6 M8 M10 HSS Drill Bit Tap 1/4" Countersink Hex Shank Bits Set Power Tools Drill tap bits increase efficiency of operation by allowing the complete hole drilling, tapping & deburring / milling in one operation with a drill-saves work, time.
• Fast replacement composite cone, uses drill edged principle. Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, improve working efficiency.
• Widely Use: Suitable for drilling, tapping, cutting on soft metal, aluminum plate, iron, etc. Note:Low Speed and Cutting holes in materials (Thickness: <3mm)
• The Automatic Center Punch delivering an automatic spring-driven strike when pressed against surface, it can be adjusted cap regulates striking force. They are used on a machine to do the tapping, such as a lathe. Machine tapping with these taps is faster, and generally more accurate because human error is eliminated.