BOSCH 2608588069 stairway drilling set HSS-AlTiN 3-piece

Name: BOSCH 2608588069 stairway drilling set HSS-AlTiN 3-piece
Brand: BOSCH
SKU: 02790248
Price: 172.6 EUR
Availability: PreOrder

Supplier number: BOSCH 2608588069 | EAN 3165140666497

Recommended Retail Price €396.35

172.60 tax incl.

€142.64 excl. VAT (incl. all environmental contributions)

On order: delivered from 14/10/2026

set

Delivery by DHL

✆ Talk to a specialist

Precise drilling without centrepunching

Practical benefits

Durable Bosch coating: The tough HSS-AlTiN coating delivers high heat resistance and extends tool life during demanding metalwork tasks.
Immediate and accurate starts: The split point tip prevents wandering and lets you start drilling precisely without pre-punching the workpiece.
Smooth and vibration-free drilling: The spiral flute clears chips quickly and reduces vibration to give you clean, burr-free holes every time.

In a nutshell

The right choise for

With the 3-piece Bosch step drill bit set, you can drill accurately and effortlessly into thin materials like sheet steel, stainless steel, aluminum, and plastics. The tough AlTiN coating delivers high heat resistance and significantly extends tool life during heavy-duty metal applications. Thanks to the split-point tip, you can start drilling immediately without wandering or pre-punching the workpiece. The spiral flute clears chips quickly and reduces vibration, ensuring clean, burr-free holes every time. Covering diameters of 4 to 12 mm, 4 to 20 mm, and 6 to 30 mm, this set provides the versatility you need for electrical enclosures, plumbing, and sheet metal modifications.

Product information FAQ

€172.60

tax incl.

Key features according to our expert

Smallest diameter: 4 mm
Drill set type: Stair drill set
Quantity per set: 3
Largest diameter: 30 mm

Product description

3-piece step drill bit set HSS-AlTiN 4-12; 4-20; 6-30 mm
Smooth drilling of various diameters with one drill bit
Stairway drill bit HSS-AlTiN can make smooth holes of various diameters with one drill bit
Pre-punching is unnecessary as the split tip enables easy drilling

Advantages

Drilling various diameters - The HSS-AITiN step drill bit can make 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 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 drill has a 3-surface shank.
The step drill is made of HSS (High-Speed Steel) and coated with AlTiN (aluminium titanium nitride).
This ensures maximum service life when coolant is used.
Using laser, the hole diameters in both spiral grooves are clearly visible and durably marked.
3-plane shank for drills.

All Features

Smallest diameter: 4 mm
Drill set type: Stair drill set
Quantity per set: 3
Largest diameter: 30 mm
Implementation: HSS-AlTiN
Stair height mm: 4 / 4 / 4 mm
Shaft diameter mm: 6 / 8 / 10 mm
Overall length mm: 66.5 / 70.5 / 93.5 mm
Stair diameter (range) mm: 4-12 / 4-20 / 6-30 mm

Brand BOSCH
02790248
EAN 3165140666497
Supplier number BOSCH 2608588069

Frequently asked questions about this product

Answered by specialists

Which diameters are included in this step drill bit set?: The 3-piece set includes step drill bits covering 4–12 mm, 4–20 mm, and 6–30 mm.
Which materials can you drill with these step bits?: They are suitable for thin materials such as non-ferrous metals, sheet steel, stainless steel, and plastics.
What is the benefit of the AlTiN coating?: The aluminium titanium nitride coating offers high heat resistance and maximizes tool life, especially with coolant.
Do you need to center-punch before drilling?: No, the split-point tip enables easy and precise drilling without prior center-punching.
What shank type do these drill bits have?: They feature a 3-flat shank that prevents slipping in the chuck and ensures optimum torque transfer.