Metric Size Bright Finish Double R Shank Spiral Flute HSS Step Drill Bit for Metal Tube Sheet Drilling

FOB Reference Price:Get Latest Price
$1.13 - $20.23 / Piece | 100 Piece/Pieces (Min. Order)
Customized logo (Min. Order: 200 Pieces)
Customized packaging (Min. Order: 200 Pieces)


Graphic customization (Min. Order: 200 Pieces) Less
$10.00 /Piece | 1 Piece (Min. Order) | Buy Samples
Report Suspicious Activity
Quick Details
Place of Origin:
Brand Name:
Model Number:
Double R Shank White STB
Center Drill Bit
Metal Drilling
Product name:
Double R Shank Spiral Flute HSS Step Drill Bit for Metal Tube Sheet
HSS and HSS Cobalt
Flute Type:
Spiral Flute
Flute Number:
Two Flutes
Double R Shank
Point Angle:
135 Split Point Angle
Fully Ground
Surface Finish:
Metal Wood Sheet Tube Drilling
Supply Ability
Supply Ability:
550000 Piece/Pieces per Month Step Drill Bit
Packaging & Delivery
Packaging Details
1. blister card, plastic box, pvc tube, pvc bag for Step Drill Bit
white paper box
2. as requested
Shanghai/Ningbo/Guangzhou/Shenzhen/Qingdao for Step Drill Bit
Metal Tools Guide

Product Description
 Product Photos

 Product Description

 More Choice For You: Home Drill Bit  > HSS Drill Bit HSS Step Drill Bit > HSS Step Drill Bit

Procuct NameBright Finish Double R Shank Spiral Flute HSS Step Drill Bit for Metal Tube Sheet Drilling
Size3-13mm   (3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm)
MaterialHSS   (Cobalt M35 is Available)
Flute TypeSpiral Flute   (Straight Flute is Available)
Flute NumberTwo Flutes   (Single Flute, Three Flutes are Available)
Shank Double R Shank   (Three Flats ShankQuick Change Hex ShankRound Shank are Available)
Surface FinishBright   (TiN, Black & Amber, Co-coated, Black Oxide, Black & Bright, TiAIN are Available)
PackageOne Piece in Double Blister or Plastic Tube

1. Step drill bits are perfect for drilling and enlarging multiple-holes in thin sections of sheet metals, pipes, plexiglass, plastics, wood up to a thickness of 5mm.

2. 135° Split Point Tip: increases cutting speed with self-centering and the drills do not run off center.

3. A variety of hole diameters can be drilled using only one tool. 

4. The dimension of drilled hole is exact. 

5. Two Flute Design: provides longer life and better chip removal.

6. The Spiral Groove: creates better, less noise, less force has to be used.

7. Only for rotary use. 

 Product Sizes


We Can Produce All Sizes of Step Drill Bits as Your Requirement ,Please Contact Us If You Need.


Step Drill Bit

 Related Products


Step Drill Bit Set

 Related Products


Company Information

 Main Product Catalogue


Company Introduction:

DANYANG TONGYU TOOLS is one of Professional Tools Suppliers with 18 Years Experience.

We Specialize in all kinds of Drill Bit and Hole Saw and Saw Blade.