Feature
●Ultra High Hardness Step Drill: The blade is evenly distributed and allows for drilling in close to a true circle. Double the contact point, sharp, and more stable than conventional double blades. It also has excellent cooling efficiency and can be expected to last a long time
●(HRC70 Hardness) HSS-Co M35 steel step drill has a titanium coating on the surface and is HRC89. Outstanding sharpness than ordinary steel step drills. Reduces heat produced during friction
●Titanium Nitride Aluminum Coating: The TiAlN coating surface forms an A1203 that forms a hard protective layer during drilling, improving the resistance to high temperature and grinding resistance, making it ideal for high-speed drilling
●Applications: An essential tool for drilling stainless steel, thin iron plates, aluminum plates, wood, vinyl, resin, etc., for household DIY, enlarging the lower hole, chamfering, deburring, etc. This is a daily item for home or work
●Size: 0.2 - 0.8 inches (4 - 20 mm), 9 Tiers (0.16 / 8 / 10 / 12 / 14 / 16 / 18 / 20 mm)
Description
The heat-resistant titanium coating (TiAIN) prevents the welding of shavings, and the special thinning process on the blade edge ensures stable positioning and long life.Can be used continuously or dry without worry.
This product is very useful when drilling stainless steel plates and iron/aluminum sheets.
The holes are designed to be very sharp and have excellent heat dissipation, and are durable and long lasting.
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