Description

Step Drill HSS Steel Titanium Cone Bit Hole Kit 3Pcs

3Pcs Step Drill HSS Steel Titanium Cone Bit Hole Metal Cutter Tool 4 - 20mm.

Features:

Premium HSS material. High-speed steel combined with a titanium coating to reduce friction and heat. Performs well in heat, corrosion, and rust resistance.

Widely used. Perfect Hss step drill bits suitable for drill holes in various material: within 3mm/0.12" (iron plate, copper plate, aluminum plate, etc); within 5mm/0.2" (wood, PVC sheet, insulation boards, etc). Not suitable for hard and brittle materials such as stainless steel, glass, tile floors, walls etc.

Easy drilling. Two-flute design, clears chips faster, smooth cutting. High step design let you feel the stop and never drill bigger in mistake.

Quick change 1/4-inch hex shank makes for easy, convenient bit switches and is compatible with impact ready power tools.

The cone drill bits set is durable and strong enough to punch and drill clean holes and can also help to enlarge existing holes and clean edges. Suitable for home DIY, and general building/engineering use.

Specifications:

Material: HSS(High Speed Steel)
Finish Type: Titanium
Shank Diameter: 1/4" Hex shank
Color: Gold+silver

Size: Approx.

3-12mm Full length: 78mm/3.1", Cutting blades 53mm
4-12mm Full length: 66mm/2.6", Cutting blades 40mm
4-20mm Full length: 75mm/3.0", Cutting blades 50mm

3-12mm 10 Steps (Cutting diameter 3, 4, 5, 6, 7, 8, 9, 10, 11, 12mm)
4-12mm 5 Steps (Cutting diameter 4, 6, 8, 10, 12mm)
4-20mm 9 Steps (Cutting diameter 4, 6, 8, 10, 12, 14, 16, 18, 20mm)

Suitable for workpieces with hardness below 25°.

Package Included:

1 x 3-12mm Drill Bit
1 x 4-12mm Drill Bit
1 x 4-20mm Drill Bit
1 x Storage Pouch