Suitable for drilling, tapping, cutting, deburring and countersinking in wood, soft metals, thin aluminum plates (5-6mm), iron, etc.Note: When drilling a hole, you should inject water at the same time to cool the drill bit.This will help you add value to the exercises.If you cannot cool the drill bit while drilling holes, the drilling speed shoulddon't be too high and you shouldn't drill holes too often.Drilling and tapping in one step processing, save a lot of work steps and time, improve work efficiency.Self-centering point, does not need assisted center drilling or center punching. There are a total of 6 taps in different sizes from M3 to M10, which you can use to tap different threads. These taps are made of high speed steel and the surface is treated by nitriding to achieve a high level of hardness and rust resistance ?Drill bits increase work efficiency because drilling and tapping can be done in a single pass. ?These HSS drill bits and taps are excellent tools for creating screw threads, cutting or shaping the female part of the mating pair. ?Spiral cone design prevents thread damage from over-drilling.Self-centering point, no need for center drilling or punching. ?They are used on a threading machine, for example a lathe. Specifications: Material: high speed steel Hex shank: 6.35 mm (1/4 "") Standard: metric Thread size: M3, M4, M5, M6, M8, M10 Distance: 0.5mm, 0.7mm, 0.8mm, 1.0mm, 1.25mm, 1.5mm Used on: machine Function: Drilling Quantity: 6 Broadcast content: 6 x countersunk taps LRFR is committed to providing each customer with the highest possible standard of customer service.