6-piece tap and die set, M3 to M10 tap and die set, high-speed steel coated hex shank for thin aluminum, copper, plastic, and wood.

SIZE SPECIFICATION --- Hex Shank: 6.35 mm; Thread Size: M3, M4, M5, M6, M8, M10; Pitch: 0.5 mm, 0.7 mm, 0.8 mm, 1.0 mm, 1.25 mm, 1.5 mm. You will receive 6 different sized countersink drill bits to meet your various needs.

SPIRAL DESIGN & IMPROVED EFFICIENCY --- The taps are designed with spiral flutes, allowing for quick replacement of the composite film using the angle drilling principle. Drilling and tapping are done in one click, making installation easy, saving steps and time, and improving work efficiency.

HARD & DURABLE STEEL --- High-quality thread and HSS screw drill bits: metal thread drill bits.

These taps are made of high-speed steel and finished with nitriding for high hardness and rust resistance.

MORE PRECISE AND DRILLING --- These metric taps with a hexagonal shank are used for threading machines. The edges are hardened and polished to ensure accuracy. There are no cutting teeth or serrations to ensure precise paper feeding and smooth, more accurate cutting.

WIDE APPLICATION --- Metal milling taps are taps with a drilling function. M6 taps are used to drill a hole and cut new threads simultaneously, providing a smooth tapping experience. Inch taps are suitable for drilling wood, plastic, thin copper, aluminum, and other soft metals (5-6 mm), but not for hard materials (e.g., sheet steel).