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3pcs HSS Titanium Coated Straight Flute Step Drill Bits Pagoda Drill Bit Set 4-12/20/32mm Hole Cutter

3pcs HSS Titanium Coated Straight Flute Step Drill Bits Pagoda Drill Bit Set 4-12/20/32mm Hole Cutter

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Stock in: china


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These step drills are very suitable for cutting holes in a variety of materials including iron, aluminum, brass, wood, plastic and more. Special step structure, one drill bit can open a variety sizes of holes, so one step drill is worthy a box of drill bits.

Titanium coated to reduce friction and heat.
High-speed steel step drill, higher quality and more durable than ordinary twist drill.
These drill bits works great in making a smooth, clean and perfectly round hole.
Suitable for punch holes through sheet metal, iron plate, aluminum plate, brass, wood, plastic, etc.
This drill bit set includes 3 sizes(4-12mm, 4-20mm, 4-32mm), which meet your different needs perfectly.

1. Hand drill and bench drill can be used for these step drills.
2. Use water injection for cooling when drilling, which can effectively prolong the using life of drill bit.
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 step drills to drill stainless steel!

Material: High-speed Steel (HSS 4241)
Surface Treatment: Titanium Coated
Shape of Shank: Triangular / Hexagonal (Optional)
Shank Diameter: 
6.35mm (Hex Shank)
6mm, 8mm, 10mm (Triangular Shank)
Overall Length:
Triangular Shank:
4-12mm Length: Approx. 63mm/ 2.48"
4-20mm Length: Approx. 73mm/ 2.87"
4-32mm Length: Approx. 100mm/ 3.94"
Hex Shank:
4-12mm Length: Approx. 66mm/ 2.60"
4-20mm Length: Approx. 76mm/ 2.99"
4-32mm Length: Approx. 102mm/ 4.02"
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 List:
3 * Step Drill Bit


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  • By g***i

    October 10, 2017

    Ótimo vendedor, ótimo produto chegou bem antes do prazo.

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  • By g***r

    May 4, 2017

    Good prices and very fast shipping!! Recommended!

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