Which hole diameters can you drill with this step drill bit?

It features 13 steps with diameters of 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, and 30 mm.

What materials is this Bosch HSS step drill bit suitable for?

It is designed for thin sheet metals, non-ferrous metals, profiles, and plastics such as PVC.

What shank type does this bit have?

It features a 10 mm 3-flat shank to prevent slipping in the drill chuck.

What is the step height of each diameter level?

The step height is 4 mm per diameter increment.

Do you need to pre-drill before using this step bit?

No, the centering tip allows precise spot drilling without pilot holes.

BOSCH 2608597520 step drill HSS 6-30, 10 x 93.5 mm

Name: BOSCH 2608597520 step drill HSS 6-30, 10 x 93.5 mm
Brand: BOSCH
SKU: 02092618
Price: 75.2 EUR
Availability: PreOrder

Supplier number: BOSCH 2608597520 | EAN 3165140107358

Recommended Retail Price €173.51

75.20 tax incl.

€62.15 excl. VAT (incl. all environmental contributions)

On order: delivered from 12/10/2026

blister

Ordered before 20:00 - delivered as of 12/10/2026
Shipping costs €6.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Smooth step drilling in sheet metal

Practical benefits

Multiple diameters without swapping: You can drill thirteen hole sizes from 6 to 30 mm efficiently using a single tool.
Clean and burr-free cuts: The spiral flute delivers optimized chip removal and reduced vibration for uniform hole edges.
Reliable Bosch shank grip: The 10 mm three-flat shank prevents slipping in your chuck during demanding high-torque tasks.

In a nutshell

The right choise for

With the Bosch hss step drill bit 6-30 mm, you can produce thirteen hole diameters without swapping tools. The built-in centering tip lets you start drilling immediately without pilot holes in thin sheet metal, non-ferrous metals, profiles, and plastics such as PVC. Its spiral flute delivers efficient chip removal and minimizes vibration to ensure clean, burr-free cuts every time. Equipped with a 10 mm three-flat shank, the bit will not slip in your chuck, giving you the grip and control needed when installing conduits or cable glands in electrical enclosures.

Product information FAQ

€75.20

tax incl.

Key features according to our expert

Smallest diameter: 6 mm
Largest diameter: 30 mm
Shank size: 10 mm
Number of steps: 13

Product description

Step drill bit HSS 6-30, 10 x 93.5 mm
Smooth drilling of various diameters with one drill bit
HSS step drill bit can make smooth drillings of various diameters with one drill bit
Pre-punching is unnecessary as the split tip enables easy drilling

Advantages

Drilling various diameters - The HSS 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 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 will last a long time if 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: 6 mm
Largest diameter: 30 mm
Shank size: 10 mm
Number of steps: 13
Implementation: HSS
Overall length mm: 93,5
Shaft diameter mm: 10
Stair height mm: 4
Stair diameter (range) mm: 6-30
Stair diameter (all) mm: 4 / 6 / 8 / 10 / 12 / 14 / 16 / 18 / 20 / 22 / 24 / 26 / 28 / 30

Brand BOSCH
02092618
EAN 3165140107358
Supplier number BOSCH 2608597520

Frequently asked questions about this product

Answered by specialists

Which hole diameters can you drill with this step drill bit?: It features 13 steps with diameters of 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, and 30 mm.
What materials is this Bosch HSS step drill bit suitable for?: It is designed for thin sheet metals, non-ferrous metals, profiles, and plastics such as PVC.
What shank type does this bit have?: It features a 10 mm 3-flat shank to prevent slipping in the drill chuck.
What is the step height of each diameter level?: The step height is 4 mm per diameter increment.
Do you need to pre-drill before using this step bit?: No, the centering tip allows precise spot drilling without pilot holes.