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0.5 1 1.5 2mm Straight Shank Twist Drill, Heat Resistant HSS Drill Bit, Tiny High Speed Bit for Plastic, Copper, Wood, Metal, Aluminum Alloy, Steel, Cast Iron
About this item
- COMBINATION KIT: cobalt drill bits in total, including size: 4 most commonly used sizes [0.5mm, 1mm,1.5mm, 2mm]
- 【Premium Material】Industrial grade HSS drill bit kit, harder used in other similar drill bits HSS increases life compared to normal drills. Strong and robust
- SMOOTH DESIGN - 135° self-centered tip, uniform pressure, hardened and polished to form a sharp edge. The precision grinding process provides smooth surface and high grinding accuracy, so you can easily drill holes.With sufficient quantity, these drills can meet needs for Jewelers, Model Makers, Hobbyists, Professional Craftsmen.
- Chip Flute: Classic humanized double helical flute design. 2 grooves help remove chips and debris from the drill, reducing friction and heat for a faster, cooler drilling process.
- PROFESSIONAL & WIDELY USED - Cobalt high-speed steel is better suited for hardening materials. Ideal for cutting stainless steel, steel and cast iron as well as wood, aluminum alloy and other softer metals. Not suitable for glass or ceramic materials. Does not apply to high carbon steel and heat treated steel.