Feature(may vary by option.)

●Works great in making a smooth, clean and perfectly round hole
●3 Sets Step Drill: With 3 sets 5 stage + 9 stage + 15 stage step drill, you can drill different sizes from small holes to big holes
●Two-fluted design provides faster, smoother cutting;Provided with small pressure and the sets can cut through wood, sheet metal, steel and other surfaces
●Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc
●HSS steel large step cone drill titanium bit set hole cutter, which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heat

[3pcs Step Drill Bit Set 1]

[10 Step Sizes]

[5pcs Step Drill Bit Set]

Description

Sizes:

4-32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm,24mm, 26mm, 28mm, 30mm, 32mm); 15 steps

4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm); 9 steps

4-12mm (4mm, 6mm, 8mm, 10mm, 12mm); 5 steps

Item Weight: Approx. 229g / 8.08oz Package Weight: Approx. 244g / 8.61oz Package Size: Approx. 11 * 9 * 3.5cm / 4.33 * 3.54 * 1.38in

Package Included:

3 set of step drill

Note：

1. Hand drill and bench drill can be used for these step drills.
2. Cooling with water when drilling can effectively extend the life of the drill.
3. Recommend drilling rate of 250-400 RPM.
4. You can drill sheet within 5mm with our step drills.
5. Remember that only M35 step drill is for stainless steel. Never use these HSS 4241.

1. When M35 contains cobalt dril 304 stainless steel:

The thickness of 1mm can be operated with a hand drill. The thickness of 2-5 with a power above 800W is recommended to use a desktop operation, and the rotation speed is below 500 rpm.

2. The thickness of the pagoda drill bit suitable for operation: 1-5mm

3. When working with a pagoda bit, you need to add water to keep the temperature down.