What materials is this drill bit suitable for?

This HSS-Co bit is ideal for stainless steel (inox), alloyed and non-alloyed steel, cast iron, and acid- and heat-resistant steels.

What type of shank does this metal drill bit have?

It features a 5 mm cylindrical shank compatible with standard three-jaw chucks on rotary drills and drill drivers.

What are the exact dimensions of this drill bit?

It has a drill diameter of 5 mm, a working length of 52 mm, and an overall length of 86 mm.

What is the benefit of the 5% cobalt alloy?

The 5% cobalt alloy (HSS-E) provides high wear resistance and heat protection when drilling through tough metals.

Is centre punching required before drilling?

The 135° self-centring split-point tip delivers precise starts and prevents the bit from wandering.

BOSCH 2608585885 metal drill bit HSS-Co, DIN 338, 5 x 52 x 86 mm (10 pcs)

Name: BOSCH 2608585885 metal drill bit HSS-Co, DIN 338, 5 x 52 x 86 mm (10 pcs)
Brand: BOSCH
SKU: 02221660
Price: 17.4 EUR
Availability: PreOrder

Supplier number: BOSCH 2608585885 | EAN 3165140521208

Recommended Retail Price €40.00

17.40 tax incl.

€14.38 excl. VAT (incl. all environmental contributions)

On order: delivered from 21/10/2026

blister

Delivery by DHL

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Precise metalworking with Bosch PRO

Practical benefits

Excellent heat and wear resistance: The HSS alloy enriched with 5% cobalt lets you drill through tough stainless steel with minimal tool wear.
Accurate centering without wandering: The specialized centering tip prevents slipping on smooth metal surfaces, ensuring precise hole placement every time.
Fast and clean chip removal: Dual cutting edges and ground flutes clear metal shavings quickly to reduce heat build-up during heavy drilling.

In a nutshell

The right choise for

Tackle tough metalworking tasks with confidence using the Bosch pro ssteel HSS-Co drill bit set, engineered for drilling through stainless steel, alloyed steel, and cast iron. Formulated from high-speed steel enriched with 5% cobalt, each bit provides outstanding resistance to extreme heat and friction for a prolonged service life. The self-centring 135° split-point tip prevents wandering on smooth surfaces, ensuring clean and accurate hole placement right from the start. Dual cutting edges and flutes clear metal shavings quickly to reduce thermal build-up. Manufactured to din 338 with a 5 mm cylindrical shank compatible with standard three-jaw chucks, this 10-piece pack delivers reliable performance for continuous trade applications.

Product information FAQ

€17.40

tax incl.

Key features according to our expert

Diameter: 5 mm
Drill bit type: Metal drill bit
Overall length: 86 mm
Shank size: 5 mm
Shank type: Cylindrical
Material (drill bit): HSS-E Co 5%
Standard: DIN 338
Number of cutting edges: 2
Number per blister: 10
Cutting length: 52 mm

Product description

Metal drill bit HSS-Co, DIN 338, 5 x 52 x 86 mm 10x
Long service life when drilling in stainless steel
HSS spiral drill cobalt lasts a long time when drilling in stainless steel.
Cobalt alloy and fully ground HSS ensure wear resistance and heat resistance

Advantages

Long service life - The HSS spiral drill cobalt lasts a long time when drilling in stainless steel.
This longer life is due to the steel alloy containing 5% cobalt and the fully ground HSS (High-Speed Steel), which offers excellent surface quality, wear resistance and heat resistance.
Thanks to two cutting edges and two grooves, chips are quickly removed, making the drill bit last even longer.
This drill is suitable for alloyed and unalloyed steel, stainless steel, cast iron, cast steel and acid- and heat-resistant steel.
This drill bit is suitable for alloyed and unalloyed steel, stainless steel, cast iron, cast steel and acid- and heat-resistant steel.
The drill bit has a cylindrical shank (drill bit and shank have the same diameter) and is intended for use in drill stands and drill/screw machines.
The HSS cobalt spiral drill bit is produced in accordance with DIN 338.
The drill bit is type N (groove angle) with a tip of 135 degrees and a diameter tolerance of h8.
The pointed split tip ensures active cutting action and perfect centring without stalling.
Cylindrical shank compatible with three-claw drill chucks.

All Features

Diameter: 5 mm
Drill bit type: Metal drill bit
Overall length: 86 mm
Shank size: 5 mm
Shank type: Cylindrical
Material (drill bit): HSS-E Co 5%
Standard: DIN 338
Number of cutting edges: 2
Number per blister: 10
Cutting length: 52 mm
Diameter (d) mm: 5
Overall length (l2) mm: 86
Useful length (l1) mm: 52

Brand BOSCH
02221660
EAN 3165140521208
Supplier number BOSCH 2608585885

Frequently asked questions about this product

Answered by specialists

What materials is this drill bit suitable for?: This HSS-Co bit is ideal for stainless steel (inox), alloyed and non-alloyed steel, cast iron, and acid- and heat-resistant steels.
What type of shank does this metal drill bit have?: It features a 5 mm cylindrical shank compatible with standard three-jaw chucks on rotary drills and drill drivers.
What are the exact dimensions of this drill bit?: It has a drill diameter of 5 mm, a working length of 52 mm, and an overall length of 86 mm.
What is the benefit of the 5% cobalt alloy?: The 5% cobalt alloy (HSS-E) provides high wear resistance and heat protection when drilling through tough metals.
Is centre punching required before drilling?: The 135° self-centring split-point tip delivers precise starts and prevents the bit from wandering.