HOHXEN 3 Packs Spiral Step Drill Bit Set with 4-12mm/4-20mm/

HOHXEN 3 Packs Spiral Step Drill Bit Set with 4-12mm/4-20mm/ 4-32mm, Total 32 Sizes, 1/4" Hex Shank Cone Titanium Coated High Speed Steel, Multi-Functional Industrial DIY Metalworking tools
- 3 standard SAE Spiral step drill bits can drill 32 different size of holes on different thickness of materials.The 3 Cutters Come in the Following Sizes: 4-12mm: 4mm,6mm,8mm,10mm,12mm; 4-20mm: 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm; 4-32mm: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm.
- Made with drop forged heat treated high speed steel (HSS) with titanium nitride coating for longer life time.
- 4241 high-speed steel, used in hardness under 25 ¡ã workpiece, the plate thickness under 5 mm.
- 1/4" round shank (6.35mm)can be easily fit into power driver, drill and press drill. Two-flute design provides faster, smoother cutting without walking and a tri-flat shank ensure a firm grip.
- Comes with 3Pcs 1/4 Inch round Shank HSS Titanium Coated Step Drill Bit Set - 4-12/4-20/4-32mm With Pouch.Suitable for punch holes through sheet metal, iron plate, aluminum plate, brass, wood, plastic, etc.
Specification:
Material: High-speed Steel
Surface Treatment: Nitrogen treatment(increasing the hardness and abrasion resistance)
Shape of Shank: Triangle Round Shank
Shank Diameter: 6mm/8mm/10mm

Overall Length:
4-12mm Length: Approx. 66mm/ 2.60"
4-20mm Length: Approx. 76mm/ 2.99"
4-32mm Length: Approx. 102mm/ 4.02"

Cutting 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

Features:
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.

NOTE:
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!

Package Included:
3 * Step Drill Bit
Country USA
Brand HOHXEN
Manufacturer HOHXEN
Binding Misc.
ItemPartNumber WJ-5320
EANs 6345319844803
ReleaseDate 0000-00-00

Country	USA
Brand	HOHXEN
Manufacturer	HOHXEN
Binding	Misc.
ItemPartNumber	WJ-5320
EANs	6345319844803
ReleaseDate	0000-00-00

HOHXEN 3 Packs Spiral Step Drill Bit Set with 4-12mm/4-20mm/ 4-32mm, Total 32 Sizes, 1/4" Hex Shank Cone Titanium Coated High Speed Steel, Multi-Functional Industrial DIY Metalworking tools

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