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RUKO STB-HSS-TiAlN Step Drill Bit 7/8 Inch (22.2 mm) with TiAlN Coating

RUKO STB-HSS-TiAlN Step Drill Bit 7/8 Inch (22.2 mm) with TiAlN Coating
RUKO STB-HSS-TiAlN Step Drill Bit 7/8 Inch (22.2 mm) with TiAlN Coating
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R3,235
+R11 Reward
The RUKO STB-HSS-TiAlN step drill bit delivers a maximum drilling diameter of 7/8 inch (22.2 mm) with a TiAlN coating for superior wear resistance. This 5-step bit starts at 14 mm and increases in 4 mm increments, making it ideal for sheet metal up to 4 mm thick.OverviewEngineered from high-speed st... Read More
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Stock 80 Code 3556282 Brand RUKO GMBH Model 1000037685 Warranty 2 Years

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Estimated delivery Thursday, October 8
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The RUKO STB-HSS-TiAlN step drill bit delivers a maximum drilling diameter of 7/8 inch (22.2 mm) with a TiAlN coating for superior wear resistance. This 5-step bit starts at 14 mm and increases in 4 mm increments, making it ideal for sheet metal up to 4 mm thick.

Overview

Engineered from high-speed steel (HSS) and coated with titanium aluminum nitride (TiAlN), this step drill bit is built for demanding applications. Its spiral flute and cross-ground cutting edge ensure efficient chip removal and clean holes. The self-centering tip allows precise positioning without a pilot hole.

What stands out

  • TiAlN coating reduces friction and heat buildup
  • Self-centering tip for accurate starts
  • Spiral flute design for smooth drilling in thin materials
  • Cross-ground cutting edge for burr-free holes

Technical details

  • Tool type: Step drill bit
  • Material: High-speed steel (HSS)
  • Coating: Titanium aluminum nitride (TiAlN)
  • Maximum drilling diameter: 7/8 inch (22.2 mm)
  • Minimum drilling diameter: 14 mm
  • Number of steps: 5
  • Step increments: 4 mm
  • Shank type: Cylindrical
  • Shank diameter: 10 mm
  • Overall length: 75 mm
  • Point angle: 118°
  • Cutting direction: Right-hand cut
  • Recommended material thickness: Up to 4 mm
  • Self-centering tip: Yes
  • Suitable materials: Sheet metal, non-ferrous metals, plastics, stainless steel
  • Standard compliance: DIN 1412 C
  • Flute type: Spiral flute
  • Edge type: Cross-ground cutting edge

Our verdict

A versatile step drill bit for professionals who need precise, burr-free holes in thin materials. The TiAlN coating extends tool life, making it a reliable choice for stainless steel and other tough alloys.

Specifications
Brand
RUKO GMBH
Category
Step Drill Bit
EAN
4007140289391
Length
75 mm
Material
High-Speed Steel (HSS)
Model
1000037685
MPN
1000037685
Producer product name
STB-HSS-TiAlN-Ø7/8-Zoll
Product type
Step Drill Bit
Weight
0.08 kg
Price history over the last 6 months
RUKO STB-HSS-TiAlN Step Drill Bit 7/8 Inch (22.2 mm) with TiAlN Coating
Current
R3,235
Lowest
R3,235
Highest
R3,239
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