HSS Step Drill Bit Set Cone Hole Cutter Enlarge Hole Puncher Titanium Coated Metal Hex Core Drill Bit Sharpener Woodworking Tool
Automatically Deburrs Holes As You Drill.
Two-Flute Design Gives You Faster, Smoother Cutting.
Titanium Nitride Coating For Cooler Running.
High Speed Steel 4241 For Long Life.
These Step Drill Bits Are Ideal For Variety Of Materials From Metal, Plastic, Fiberglass To Wood.
They Also Help To Enlarge Existing Holes.
The Two-Flute Design Tips Made The Penetration Faster Without Chipping.
Shank: 1/4″ Hex Shank
5 step drill bit: 4-12mm (4mm, 6mm, 8mm, 10mm, 12mm)
9 step drill bit: 4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm)
10 step drill bit: 3-12mm (3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm)
Material: HSS4241, titanium plated
Hex shank step drill 3-12 4-12, 4-20 each 1pcs,
1* center punch
1* zip lock bag
1.sturdy and durable: high speed steel +durable titanium alloy
The inconvenient triple-flat handle is avoided to ensure a firm grip.
2.Easy to drill: The double groove design provides faster and smoother cuts.
Low pressure, can cut wood, metal plate, steel and other surfaces.
3.Automatic center punch: Provides automatic, high-impact, spring-loaded strikes when adjustable against the surface, and adjustable caps to adjust strike force.
4.Wide range of uses: marking holes, activating drills and screws, preventing wandering, heat-treated alloy steel punches, sharp and precise tips, corrosion-resistant brass bodies, non-slip knurled handles.
This compact bit replaces 24 of the 3 step drills, including a 4-12 mm, a 4-20 mm and a 3-12 mm.
5.The double groove design provides faster and smoother cuts.
— High speed, titanium nit-ride coated steel Replaces 28 separate drill bits Two fluted design for fast, smooth cutting.
— When inject cold water while working, can effectively extend the service life of the drill bit. Recommend drilling rate of 250-250 RPM.
— 1mm thickness can be operated by hand drill, 2~3mm please use bench drill. The drill must continue to cool down when it is working, and it is not easy to burn.
— According to the need to process different diameter holes, you can achieve one-time processing of large holes, no need to replace the drill bit and positioning hole.
— Shank: 1/4″ Quick Change Hex Shank
— Finish: Titanium
— Material: HSS (Suitable for use in the hardness below 25 degrees workpiece, such as iron plate, copper plate, aluminum plate, the thickness of the plate of step is 3mm and wood, PVC sheet, insulation boards with a thickness of 5mm(0.2 inch) or less). Can not be used to hard and brittle materials such as stainless steel, glass, tile floors, walls etc.
4-12 9 Steps(Diameter 4, 5,6, 7,8, 9,10, 11,12mm)
4-20 9 Steps(Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20mm)
4-32 15 Steps(Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm)
— Automatic Center Punch: 7.4 x 2.6 x 0.7 inch
3 x Hss Step Cone Drill Bit Titanium Hole Cutter Set
1 x Automatic Center Punch
1 x Storage bag
Material: High speed steel
4-12mm: 4-6-8-10-12mm 5 steps
4-20mm: 4-6-8-10-12-14-16-18-20mm 9 steps
4-32mm: 4-6-8-10-12-14-16-18-20-22-24-26-28-30-32mm 15 steps
Type: Spiral step drill
Scope: thin iron plate, aluminum plate, insulation plate, PVC plate, internal wood thickness is 0.4mm.
We have different types of products, you can choose which one you need.
1.High-speed steel material, more durable.
2.Nitride reduces friction and cools
3.No pilot holes, if you drill holes, you can automatically deburr holes.
4.Special step structure can drill holes of different sizes,
5.1 Step drill can be used as 1 box drill.
6.With water cooling, it can effectively extend the life of the drill bit. The recommended drilling speed is 250-400. Widely used for holes of various materials, such as thin steel plate, wood, thin iron, aluminum, insulation board, PVC board, etc.
1 drill bit
Package Included:3pc Hss Step Cone Drill Bit Titanium Hole Cutter Set
Product material: high speed steel 4241
Surface treatment: Nitriding (black)
4-12 5 (Diameter 4, 6, 8, 10, 12mm)
4-20 9 (Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20mm)
4-32 15 (Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm)