1.This is the HSS Steel Large Step Cone Drill Bit;
2.Which is made from HSS steel, and with the blue coated.
3.Ideal For DIY: Tiny Home and General Building / Engineering Using(Without the use of center punch, easy to break, a step drill specifications apply.)
وصف
Combination Drill & Taps
Step Drill Bit 3-12/4-12/4-20mm Cone Drill Bit Blue Coated Metal Stepped Drill Straight Core Drilling Tool 1Set
See the second picture for details
Specifications:
Material: High speed steel(HSS)
Coating: Blue Coated
Shank: Hex shank 6.35mm(1/4'')
Size: 3-12mm, 4-12mm, 4-20 mm
Suitable material:plastic, aluminum, copper, stainless steel and many other types of sheet metal.
Package Including:
1 Set 3-12/4-12/4-20mm Step Drill Bits
1