Specifications:
Cutting Edge Diameter: 0.75mm / 0.03"
Cutting Edge Length: 10mm / 0.39", 7mm / 0.28"
Shank Diameter: 3.175mm / 1/8", 0.75mm / 0.03"
Overall Length: 37mm / 1.46", 33mm / 1.3"
Material: Tungsten Carbide
Package Included: 10pcs x 0.75mm PCB Drill Bits, 2pcs x 0.75mm Twist Drill Bits

Descriptions:PCB drill bits are suitable for drilling and engraving PCB, acrylic, plastics, fiberglass, wood, aluminium, soft metals. Fit for PCB drilling machines, engraving machine, CNC and high precision special drilling equipment.
Twist drill bits are widely used for drilling non-ferrous metal, cast iron, stainless steel, aluminum, copper, alloy steel, plastic, etc.. Used on machining centers, CNC lathes.
Tungsten carbide drill bits have high hardness, good toughness, wear resistance, high strength, resistance to bending and heat resistance. With good milling and cutting performance, can ensure high work efficiency. Carbide tool offers long tool life and faster cutting speeds than other substrates.
Sharp cutting edge provides smooth cutting, reduces cutting force and prevents drill broken, improves the drilling accuracy. It has good cutting strength and drilling effect. Spiral chip space design for fast and clean chip removal.
These tool sets work quickly and cleanly, no glitches or scrap left. The longer the length of the tool clamped by the chuck, the better. Suitable lubricant is conducive to cutting or cooling.
Tips: The drill bits are too tiny, so it is very fragile for handling. If the clamping length is shorter, you need to lower the feed rate and cutting speed to reduce vibration and extend the tool life.