Features 1、Cobalt High Speed Steel: Made of cobalt high speed steel, these tapping bits have good wear resistance and cutting performance. 2、3 in 1 Design: With the functions of drilling, tapping and chamfering, it can effectively improve work efficiency. 3、With 1/4in Hex Shank: These tap bits are equipped with standard 1/4in hex shank for tighter clamping and easy operation. 4、Multiple Specifications: With M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1, M8 x 1.25, M10 x 1.5 specifications, to meet a variety of needs. 5、For Drilling and Tapping Work: Tap bits are suitable for drilling and tapping aluminum, wood, copper, plastic, and iron plates, etc. Specification Item Type: Combination Drill Tap Bit Material: Cobalt high speed steel Uses: Suitable for drilling and tapping aluminum, wood, copper, plastic, and iron plates Shank Type: 1/4in Hex Shank Specifications: M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1, M8 x 1.25, M10 x 1.5 Applicable Machines: Tapping machine, handheld tapping machine, drilling and tapping machine, machining center Package List 6 x Bits