Feature

●Double blade design for faster and smoother cutting speed
●Quick Change 1/4" Hex Shank
●Titanium Nitride Coating for Cooler Driving
●Drilling automatically
●High speed steel for long life


Description

Hacbop Color: Golden Yellow + Silver
Material: Metal
These step drill bits are ideal for a variety of materials, from metal, plastic, wood to fiberglass.
They also help to magnify existing holes
Two flute design tips allow for faster penetration without chipping
1/4" Hex shank
Size: (approx.)
3312 mm: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 mm / 0.12, 0.16, 0.20, 0.24, 0.28, 0.31, 0.35, 0.39, 0.43, 0.47 inches
4412 mm: 4, 6, 8, 10, 12 mm / 0.16, 0.24, 0.31, 0.39, 0.47 inches
4420 mm: 4, 6, 8, 10, 12, 14, 16, 18, 20 mm / 0.16, 0.24, 0.31, 0.39, 0.47, 0.55, 0.63, 0.71, 0.79 inches
4241 High Speed Steel HSS (Suitable for use in work with hardness of 25 degrees, such as carbon steel, plate material, insulation board, wood board, etc.).
Package Contents:
3 x step drill bits with bag.
Package contents above and other products are not included here.
Note: The color and size of the actual item may vary slightly from the color and size on the website due to lighting and display conditions. The range of allowable measurement errors is 0.4 - 1.2 inches (1 - 3 cm).