Feature

●Double Blade Step Drill: The spiral grooves on the 2 blades have a chip breaker function, which makes the cutting powder produced during use and reduces the burst of grain, reducing heat generating than normal products, allowing for speedy drilling and cutting edge to last longer
●(HRC89 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
●Industrial Grade TiAIN Coating: The TiAlN coating surface forms an A1203 that forms a hard protective layer when punctured, 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)

[4-20mm]

Description

Description:

This shape is also called the "Takenoko Drill". The spiral groove on the 2-blade has a chip breaker function that reduces the amount of grains that occur during use, and reduces the amount of heat generated to extend the life of the blade for speedy drilling work and cutting edge. The tip is thinned for a very good bite. If you have not had a lot of drills or hole saws, you can expand the holes gradually.