6 Pcs 1/4" HSS Spiral Hex Shank Combination Drill Screw Tap Bit Set (M3-M10) with Automatic Spring Loaded Center Punch Tool
Brand: LepoHome
Color: Silver
6PCS 1/4" Hex HSS Composite Spiral 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.
【Customer Service】Contact us if you are not satisfied with it for any reason. And we promise all the issue will be solved within 24 hours.
Material: HSS (4341) High hardness, rustproof, solid and durable; Self-centering design: do not need additional center drilling or center punching
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.
Metric: M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5.Shank:1/4 inch (6.35mm) hex shank
The Automatic Center Punch delivering an automatic spring-driven strike when pressed against surface, it can be adjusted cap regulates striking force
Widely Use: Suitable for drilling, tapping, cutting on soft metal, aluminum plate, iron, etc. Note:Low Speed and Cutting holes in materials (Thickness: <3mm)