BOSCH 2608597519 step drill HSS 4-20, 8 x 70.5 mm

Name: BOSCH 2608597519 step drill HSS 4-20, 8 x 70.5 mm
Brand: BOSCH
SKU: 02092621
Price: 44.2 EUR
Availability: PreOrder

Supplier number: BOSCH 2608597519 | EAN 3165140107341

Recommended Retail Price €104.47

44.20 tax incl.

€36.53 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
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

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Precise step drilling across diameters

Practical benefits

Efficient drilling without bit changes: This Bosch step drill bit lets you cleanly produce 9 hole sizes from 4 mm to 20 mm.
Instant start without centring: The split-point tip allows you to begin drilling immediately on thin sheet metal without prior centre punching.
Secure hold without slipping: The 8 mm 3-flat shank delivers high torque transmission and prevents slipping inside your drill chuck.

In a nutshell

The right choise for

With the Bosch 2608597519 hss step drill bit, you cleanly bore multiple hole sizes without constantly swapping tools. Featuring 9 steps from 4 to 20 mm, it lets you work smoothly across thin sheet metal, stainless steel, non-ferrous metals, and plastics. The split-point tip delivers immediate, accurate centering on your workpiece, completely eliminating the need for pre-drilling or centre punching. Meanwhile, the 8 mm 3-flat shank prevents slippage in your drill chuck to ensure maximum torque transfer. It is the practical choice for effortlessly drilling, enlarging, and deburring holes in electrical enclosures, bodywork, and ducting.

Product information FAQ

€44.20

tax incl.

Key features according to our expert

Smallest diameter: 4 mm
Largest diameter: 20 mm
Shank size: 8 mm

Product description

Step drill bit HSS 4-20, 8 x 70.5 mm
Smooth drilling of various diameters with one drill bit
HSS step drill bit can drill 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 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: 4 mm
Largest diameter: 20 mm
Shank size: 8 mm
Implementation: HSS
Overall length mm: 70,5
Shaft diameter mm: 8
Stair height mm: 4
Stair diameter (range) mm: 4-20
Stair diameter (all) mm: 4 / 6 / 8 / 10 / 12 / 14 / 16 / 18 / 20

Brand BOSCH
02092621
EAN 3165140107341
Supplier number BOSCH 2608597519

Frequently asked questions about this product

Answered by specialists

Which hole diameters can you drill with this Bosch step drill bit?: This bit features 9 steps with diameters of 4, 6, 8, 10, 12, 14, 16, 18, and 20 mm.
What materials is this HSS step drill bit suitable for?: It is suitable for thin sheet materials such as sheet steel, non-ferrous metals, stainless steel, and plastic.
What shank size and type does this drill bit have?: It has an 8 mm 3-flat shank designed to prevent slipping in the drill chuck.
Do you need to pre-drill before using this bit?: No, the split point allows direct and precise drilling without centre punching or pre-drilling.
How can you maximise the service life of this step bit?: Always use appropriate cutting oil or coolant when drilling through metals to minimise wear.