BOSCH 2608587434 step drill bit HSS-TiN 10-40, 10 x 125.5 mm

Name: BOSCH 2608587434 step drill bit HSS-TiN 10-40, 10 x 125.5 mm
Brand: BOSCH
SKU: 02790255
Price: 139.8 EUR
Availability: PreOrder

Supplier number: BOSCH 2608587434 | EAN 3165140630283

Recommended Retail Price €325.82

139.80 tax incl.

€115.54 excl. VAT (incl. all environmental contributions)

On order: delivered from 07/10/2026

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Ordered before 20:00 - delivered as of 07/10/2026
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Delivery by DHL

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Clean drilling across diameters

Practical benefits

Versatile hole size range: With this Bosch step drill bit, you can create smooth holes from M10 to M40 using a single tool.
Smooth vibration-free cutting: The spiral flute ensures efficient chip removal and minimizes vibration, giving you clean and burr-free results every time.
Reliable non-slip grip: The 10 mm 3-flat shank prevents slipping inside the drill chuck during demanding drilling applications.

In a nutshell

The right choise for

Drill clean, accurate holes in thin materials without constantly switching bits. With the Bosch 2608587434 HSS-TiN step drill bit, you create smooth holes from M10 to M40 in sheet steel, stainless steel, non-ferrous metals, and plastic. The split-point tip centres instantly, making pre-punching completely unnecessary. Its spiral flute ensures rapid chip removal and reduces vibration, delivering a clean, burr-free finish every time. The wear-resistant TiN coating withstands heat and friction, while the 10 mm 3-flat shank prevents slipping inside the drill chuck. This gives you total control when fitting cable glands or installing ductwork.

Product information FAQ

€139.80

tax incl.

Key features according to our expert

Smallest diameter: 10 mm
Largest diameter: 40 mm
Shank size: 10 mm

Product description

Step drill bit HSS-TiN 10-40, 10 x 125.5 mm
Smooth drilling of various diameters with one drill bit
HSS-TiN step drills can produce smooth holes of various diameters with a single drill bit
Pre-punching is unnecessary as the split tip enables easy drilling

Advantages

Drilling various diameters - The HSS step drill bit can drill smooth, burr-free holes of various diameters with a single drill bit.
The drill bit is ideal for deburring, drilling round holes and enlarging existing holes.
Pre-punching is unnecessary as the split tip allows easy drilling.
The CNC ground spiral groove offers optimised chip removal and reduced vibration for uniform drilling.
Axial and radial back grinding ensure excellent cutting performance and absolute smoothness.
This step drill is suitable for use on thin materials, such as non-ferrous metals, sheet plastic, sheet steel, plastic and stainless steel.
The step drill is made of HSS (High-Speed Steel) and coated with TiN (titanium nitride).
This ensures an exceptionally long service life when coolant is used.
Using laser, the hole diameters in both spiral grooves are clearly visible and durably marked.
In addition, the 3-surface shank prevents slipping in the chuck and ensures high torque transfer.
3-surface shank for drills.

All Features

Smallest diameter: 10 mm
Largest diameter: 40 mm
Shank size: 10 mm
Implementation: HSS-TiN
Overall length mm: 125,5
Shaft diameter mm: 10
Stair height mm: 6/4
Stair diameter (range) mm: M10-M40

Brand BOSCH
02790255
EAN 3165140630283
Supplier number BOSCH 2608587434

Frequently asked questions about this product

Answered by specialists

What hole diameters can be drilled with this step drill bit?: This step drill bit covers diameters from 10 mm up to 40 mm (M10-M40).
What type of shank does this bit have?: It features a 10 mm 3-flat shank to prevent slipping inside the drill chuck.
Which materials is this step drill bit suitable for?: It is suitable for thin materials such as sheet steel, stainless steel, non-ferrous metals, and plastics.
Is center-punching required before drilling?: No, the split-point tip allows direct drilling without prior center-punching.
What is the benefit of the TiN coating?: The TiN (titanium nitride) coating increases wear resistance and extends tool life when used with coolant.