Description:
6-60mm HSS 4341 Step Drill Bit Hight Steel Speed 12 Steps Straight Flute Step Drill
Specification:
Material: High Speed Steel
Drill Steps Size: 6-60mm
Length: Approx. 106mm/ 4.17"
Diameter: Approx. 60mm/ 2.36" (bottom)
Steps: 12 steps (6mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm)
(applicable to hardness below 25 degrees workpieces, such as carbon steel, aluminum parts)
Quantity: 1pc
Features:
Unique step structure, one drill can open a variety of sizes.
Easy to install and you don't have to ch