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

It features 13 steps covering diameters from 4 to 39 mm (4, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, and 39 mm).

What is the benefit of the three-surface shank?

The 10 mm three-surface shank ensures positive torque transmission and prevents slipping in the drill chuck.

What is the maximum material thickness this bit can drill?

This HSS step drill bit is designed for sheet metal, pipes, and profiles up to 4 mm thick.

Which materials can you work on with this bit?

It is suitable for steel, non-ferrous metals, plastics, and wood.

Is coolant recommended during drilling?

Yes, using cutting oil or compressed air cooling is recommended with this uncoated HSS bit to maximize service life.

PFERD STB HSS 04 39/10 stepped drill bit HSS with 13 drill stages 4-39 mm three-zone shank 10 mm - 25201039

Name: PFERD STB HSS 04 39/10 stepped drill bit HSS with 13 drill stages 4-39 mm three-zone shank 10 mm - 25201039
Brand: PFERD
SKU: 03237325
Price: 123.29 EUR
Availability: PreOrder

Supplier number: PFERD 25201039 | EAN 4007220165898

123.29 tax incl.

€101.89 excl. VAT (incl. all environmental contributions)

On order: delivered from 14/10/2026

Delivery by DHL

✆ Talk to a specialist

Precise step drilling with Pferd

Practical benefits

Drill and deburr simultaneously: With thirteen diameter steps from 4 to 39 mm, you can drill and deburr sheet metal, pipes, and profiles in a single operation.
Secure three-flat shank design: The 10 mm three-surface shaft prevents slipping in the drill chuck, ensuring you achieve reliable and efficient torque transmission.
Smooth and clean performance: Made from durable HSS steel, the bit provides effortless centering, smooth cutting action, and burr-free holes across various materials.

In a nutshell

The right choise for

With the Pferd stb hss 04 39/10 step drill bit, you can create clean holes from 4 to 39 mm in sheet metal, pipes, and profiles in a single operation. Its thirteen precise steps allow you to drill and deburr simultaneously without switching tools or deforming thin materials. Built from durable hss steel, it ensures effortless centering and smooth cutting action across steel, non-ferrous metals, and plastics up to 4 mm thick. The 10 mm three-flat shank prevents slipping in the drill chuck, giving you dependable torque transmission and complete control during panel building, bodywork, or installation jobs.

Product information FAQ

€123.29

tax incl.

Key features according to our expert

Smallest diameter: 4 mm
Number of steps: 13
Largest diameter: 39 mm
Shank size: 10 mm

Product description

PFERD Step drill HSS 13 drilling steps dia. 4-39 mm 3-surface shaft dia. 10 mm

Characteristics

HSS step drills for drilling and deburring thin sheets, pipes and profiles made from various materials
To ensure reliable torque transmission, all step drills have a three-surface shaft

Advantages:

Drilling and deburring in a single step.
Completely smooth running and a high cutting performance.
The high-quality drill tip ensures effortless centring and drilling.
The tool taper makes it easier to pull back from drilled plates.
Chips which do not break are neatly removed as with a spiral drill.
Built-up edges and cold welding on the blades are prevented.

All Features

Smallest diameter: 4 mm
Number of steps: 13
Largest diameter: 39 mm
Shank size: 10 mm
Drilling range, up to: 39
Processing tasks: Galvanised
Drill stairs: 4,0/6,0/9,0/12,0/15,0/18,0/21,0/24,0/27,0/30,0/33,0/36,0/39,0
Rpm up to, hard non-ferrous metals: 2400
Rpm of, soft non-ferrous metals: 160
Rpm of, steels up to 700 n/mm²: 160
Rpm of, hard non-ferrous metals: 160
Rpm of, stainless and acid-resistant steels: 80
Rpm up to, steels up to 700 n/mm²: 2400
Rpm of, thermoplastics, fibre-reinforced plastics (grp/cfk): 80
Rpm up to, soft non-ferrous metals: 2400
Rpm to, thermoplastics, fibreglass plastics (grp/cfk): 1600
Number, drill steps: 13
Workable materials: Aluminium
Rpm to, stainless and acid-resistant steels: 1600
ø shaft metric: 10
Drilling range, from: 4

Brand PFERD
03237325
EAN 4007220165898
Supplier number PFERD 25201039

Frequently asked questions about this product

Answered by specialists

Which hole diameters can you drill with this step drill bit?: It features 13 steps covering diameters from 4 to 39 mm (4, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, and 39 mm).
What is the benefit of the three-surface shank?: The 10 mm three-surface shank ensures positive torque transmission and prevents slipping in the drill chuck.
What is the maximum material thickness this bit can drill?: This HSS step drill bit is designed for sheet metal, pipes, and profiles up to 4 mm thick.
Which materials can you work on with this bit?: It is suitable for steel, non-ferrous metals, plastics, and wood.
Is coolant recommended during drilling?: Yes, using cutting oil or compressed air cooling is recommended with this uncoated HSS bit to maximize service life.