Set of 3 Step Drill Bits, Stainless Steel, 4-12/20/32mm, Titanium Conical Triangle, with Hexagonal Shank, for Drilling and Screwdriver Drilling on Steel, Brass, Wood, and Plastic

Product Description
Unique step design
This drill bit can be used to open holes of different sizes, i.e. the equivalent of a Bo?you drill.
Who are stupid?us to precisely drill holes of various sizes, from 4mm to 32mm in diameter, with optimum speed and precision. Easily identify the size you need with the contrasting, laser-etched sizes inside the bit flute.
HSS and Titanium Coated
Our step drill bits are made from super strong HSS steel and coated with titanium to make them even more durable.
-High speed steel tools are suitable for most general applications, offering a combination of hardness and toughness for resistance to wear.
- also proves the ability and durability of the drill to last through multiple per?ages on surfaces such as: plastic, aluminum, copper, stainless steel, wood, etc.
-Stable, working without pre-work.
Hexagon Shank Design
1/4" quick change hex shank fits securely into power tool chuck and eliminates slippage. It's a great universal fit that will give you confidence as you work knowing your bit is securely in place.
Increased cutting speed
The two flute design allows for a perfect fit.age faster and gentler. Thanks to low pressure, the games can cut wood, t?steel, steel and other surfaces.
Nylon bag
Packed in a nylon bag, providing good protection.
Specifications
Material:
High Speed Steel (HSS)
Finish:
Titanium
Pattern
Step Drill Bits
Head Type
Hexagonal & Cylindrical
Number of items
3PCS
Usage
Apply in gun-drilling,bench drill
NOTE:
When you use these drill bits, the material temperature will be very high, please?t add water or coolant to prevent smoking. Suitable for workpieces with a hardness of 25° or less and a thickness less than 5mm for wood, plastic and thin metal. The speed of step drill bits is advised to be 250-400 RPM/Min. Always wear protective glasses when working with tools.
Length:
5 Countersink Drill Bit: 4-12mm Length: Approx. 6.7cm/ 2.64"
9 Countersink Drill Bit: 4-20mm Length: Approx.7.4cm/ 2.91"
15 Countersink Drill Bit: 4-32mm Length: Approx. 10.2cm/ 4.02"
The 3 - between the following dimensions:
Size 1: 4-12mm (4mm, 6mm, 8mm, 10mm, 2mm);
Size 2: 4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 14mm, 16mm, 18mm, 20mm); Size 3: 4-32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm).
Product Contents:
1*Set of 3 Step Drill Bits with 1*Storage Bag