Shining House - 6pcs Tap and Die Set, M3-M10 Tap Drill Bit, 1/4 Inch Metal Thread Drill Bit, Titanium Coated Hex Shank for Thin Aluminum Copper

SIZE SPECIFICATION --- Hex Shank: 6.35mm (1/4"); Thread Size: M3, M4, M5, M6, M8, M10; Pitch: 0.5mm, 0.7mm, 0.8mm, 1.0mm, 1.25mm, 1.5mm. You will get 6 different size countersink drill bits which can meet your various needs SPIRAL DESIGN & IMPROVE EFFICIENCY --- The taps are designed with spiral flutes, can quickly replace the composite film using the principle of angle drilling, one-click drilling and tapping, easy to install, saving steps and time and improving work efficiency. HARD STEEL & DURABLE --- High Quality Thread & 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 ACCURATE AND DRILLING --- These metric hex shank taps are used for threading machines, the edges are hardened and polished to ensure accuracy, there is no construction or cutting teeth to ensure accurate paper feeding and smooth cutting, more precise. WIDE APPLICATION --- These metal taps are taps with