Step Drill Bit
Suitable for use in the hardness below 25 degrees workpiece, such as carbon steel, the thickness of the plate of a step is 5mm /13/64 inch.Made from high-quality HSS steel, and with the Titanium coated to reduce friction and heat.
Specification:
Measurement System: Metric / inch.
Type: Step Drill Bits
Grade: M2
Factory Hardness level: 255 HB
Material: HSS (High Speed Steel)
Surface Treatment: Titanium Coated 10nm
Shank Size: 1/4" Quick Change Hex Shank
Flute : 2
Lenght, Φ & steps:
L: 66.7mm / Φ: 4 - 12 mm / 5 Steps (4mm, 6mm, 8mm, 10mm, 12mm)
L: 76.5mm / Φ: 4 - 20 mm / 9 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm)
L: 102.5mm / Φ: 4 - 32 mm / 15 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm)
Features:
Two flute design provides faster, smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps.
It is very suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, concrete.
Package Included:
1set x Hex Step Drill Bit Impact Ready Cone 2 Flute Spiral HSS Shank 1/4 inch Set 3pcs
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