10pcs PCB Drill Bits Set, 0.6-1.5mm 1/8" Shank Spiral Flute CNC Router Bits for Print Circuit Board Jewelry CNC Engraving - Hilitand, Hilitandy3upx5gci76519

• High quality material -- The drill bit is made of high-quality cemented carbide and HHS material, and the use of high-quality materials and fine grinding technology makes the bit sharper. High precision -- The blade is sharp, the milling groove is flat, the surface is smooth, and the tool is fast and clean without leaving any burrs and waste. Multi-size -- This set contains 10 different sizes of drill diameters: 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3, 1.4, 1.5mm. The length of the drill bit is about 38.1 mm/1.5 inches, and the diameter of the shank is about 3.175 mm. Easy to use -- Large chip removal space, small chip removal resistance, smooth chip removal, reducing cutting force and broken drills, and improving the quality of the hole wall. It is easy to replace and can cut solder holes on PCB well. Application -- Suitable for 3D printer nozzle cleaning, circuit board, CNC engraving plexiglass, jewelry, metal plastic and other precision drilling.