Buy Heller 21506 0 HSS Metal twist drill bit 25 mm Total length 281 mm DIN 345 MK3 1 pc(s) | Conrad Electronic | Conrad COM

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Close-up of a black twist drill bit with a hex shank, shown horizontally on a white background.

Close-up of a black twist drill bit with a hex shank, shown horizontally on a white background.

Close-up of a black spiral drill bit on a white background, shown vertically.

1/2

Product type

Metal twist drill bit

Drill hole Ø

25 mm

Content

1 pc(s)

Material

HSS

Material suitability

Metal

Plastic

Non-ferrous metal

Datasheet (PDF)

Heller

Dispatches on Tue, 15 Dec 2026

Sales and shipping:

Conrad ElectronicTerms & Conditions

Number

Piece(s)

Total (€ 28.99 / piece)

€ 28.99

incl. VAT

14-day return policy included

Report legal concerns

Technical specifications

Product type: Metal twist drill bit

DIN standard: DIN 345

Drill hole Ø: 25 mm

Drill hole Ø tolerance limit: h 8

Tip angle: 118°

Content: 1 pc(s)

Material: HSS

Material suitability: Metal
Plastic
Non-ferrous metal

Tool holder: MK3

Working length: 160 mm

Total length: 281 mm

Weight: 621.6 g

Length: 281 mm

UKCA: not relevant

Variants(All information include VAT, plus shipping costs)

Drill hole Ø

Tool holder

Heller 21506 0 HSS Metal twist drill bit 25 mm Total length 281 mm DIN 345 MK3 1 pc(s)

Heller 21506 0 HSS Metal twist drill bit 25 mm Total length 281 mm DIN 345 MK3 1 pc(s)

Item no:802499

Dispatches on Tue, 15 Dec 2026

Conrad Electronic

This article

25 mm

MK3

Piece(s)

Minimum order quantity: 1

Multiple: 1

€ 28.99^*

Heller 21480 3 HSS Metal twist drill bit 12 mm Total length 182 mm DIN 345 MK1 1 pc(s)

Heller 21480 3 HSS Metal twist drill bit 12 mm Total length 182 mm DIN 345 MK1 1 pc(s)

Item no:803817

Dispatches on Wed 21 Oct

Conrad Electronic

12 mm

MK1

Piece(s)

Minimum order quantity: 1

Multiple: 1

€ 10.99^*

Heller 21482 7 HSS Metal twist drill bit 13 mm Total length 182 mm DIN 345 MK1 1 pc(s)

Heller 21482 7 HSS Metal twist drill bit 13 mm Total length 182 mm DIN 345 MK1 1 pc(s)

Item no:802467

Dispatches on Thu 22 Oct

Conrad Electronic

13 mm

MK1

Piece(s)

Minimum order quantity: 1

Multiple: 1

€ 12.99^*

Heller 21486 5 HSS Metal twist drill bit 15 mm Total length 212 mm DIN 345 MK2 1 pc(s)

Heller 21486 5 HSS Metal twist drill bit 15 mm Total length 212 mm DIN 345 MK2 1 pc(s)

Item no:802472

Dispatches on Mon 19 Oct

1 Piece(s)Conrad Electronic

15 mm

MK2

Piece(s)

Minimum order quantity: 1

Multiple: 1

€ 14.99^*

Heller 21488 9 HSS Metal twist drill bit 16 mm Total length 218 mm DIN 345 MK2 1 pc(s)

Heller 21488 9 HSS Metal twist drill bit 16 mm Total length 218 mm DIN 345 MK2 1 pc(s)

Item no:802474

Dispatches on Mon 19 Oct

1 Piece(s)Conrad Electronic

16 mm

MK2

Piece(s)

Minimum order quantity: 1

Multiple: 1

€ 14.99^*

Heller 21490 2 HSS Metal twist drill bit 17 mm Total length 223 mm DIN 345 MK2 1 pc(s)

Heller 21490 2 HSS Metal twist drill bit 17 mm Total length 223 mm DIN 345 MK2 1 pc(s)

Item no:802478

Dispatches on Mon 19 Oct

5 Piece(s)Conrad Electronic

17 mm

MK2

Piece(s)

Minimum order quantity: 1

Multiple: 1

€ 14.99^*

Heller 21492 6 HSS Metal twist drill bit 18 mm Total length 228 mm DIN 345 MK2 1 pc(s)

Heller 21492 6 HSS Metal twist drill bit 18 mm Total length 228 mm DIN 345 MK2 1 pc(s)

Item no:802480

Dispatches on Mon 19 Oct

6 Piece(s)Conrad Electronic

18 mm

MK2

Piece(s)

Minimum order quantity: 1

Multiple: 1

€ 14.99^*

Heller 21494 0 HSS Metal twist drill bit 19 mm Total length 233 mm DIN 345 MK2 1 pc(s)

Heller 21494 0 HSS Metal twist drill bit 19 mm Total length 233 mm DIN 345 MK2 1 pc(s)

Item no:802482

Dispatches on Thu 22 Oct

Conrad Electronic

19 mm

MK2

Piece(s)

Minimum order quantity: 1

Multiple: 1

€ 15.99^*

Heller 21496 4 HSS Metal twist drill bit 20 mm Total length 238 mm DIN 345 MK2 1 pc(s)

Heller 21496 4 HSS Metal twist drill bit 20 mm Total length 238 mm DIN 345 MK2 1 pc(s)

Item no:802485

Dispatches on Thu 22 Oct

Conrad Electronic

20 mm

MK2

Piece(s)

Minimum order quantity: 1

Multiple: 1

€ 16.99^*

Heller 21498 8 HSS Metal twist drill bit 21 mm Total length 243 mm DIN 345 MK2 1 pc(s)

Heller 21498 8 HSS Metal twist drill bit 21 mm Total length 243 mm DIN 345 MK2 1 pc(s)

Item no:802487

Dispatches on Thu 22 Oct

Conrad Electronic

21 mm

MK2

Piece(s)

Minimum order quantity: 1

Multiple: 1

€ 19.99^*

Documents & Downloads

Datasheet

Datasheet 802499 Heller 21506 0 HSS Metal twist drill bit 25 mm Total length 281 mm DIN 345 MK3 1 pc(s)

User & Safety Instructions

User & Safety Instructions 802499 Heller 21506 0 HSS Metal twist drill bit 25 mm Total length 281 mm DIN 345 MK3 1 pc(s)

Features

Cone shaped ship with 118 ° point angle for maximum long shelf-life
Morse taper recording according to DIN 345
Good chip removal and concentricity
Diameter Tolerance to h8.

Hints

This text is machine translated.

Description

Features

Cone shaped ship with 118 ° point angle for maximum long shelf-life
Morse taper recording according to DIN 345
Good chip removal and concentricity
Diameter Tolerance to h8.

Hints

This text is machine translated.

Frequently Bought Together

(^*All information is plus legal VAT)

This article

Heller 21506 0 HSS Metal twist drill bit 25 mm Total length 281 mm DIN 345 MK3 1 pc(s)

Heller 21506 0 HSS Metal twist drill bit 25 mm Total length 281 mm DIN 345 MK3 1 pc(s)

Conrad Electronic

€ 28.99^*

Basetech 1574783 Drill bit sharpener

Basetech 1574783 Drill bit sharpener

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HELIOS PREISSER 0321302 Marking gauge Steel rust-proof

HELIOS PREISSER 0321302 Marking gauge Steel rust-proof

Conrad Electronic

€ 30.99^*

Total price:

€ 70.97^*

Frequently Bought Together

(^*All information is plus legal VAT)

This article

Heller 21506 0 HSS Metal twist drill bit 25 mm Total length 281 mm DIN 345 MK3 1 pc(s)

Heller 21506 0 HSS Metal twist drill bit 25 mm Total length 281 mm DIN 345 MK3 1 pc(s)

Conrad Electronic

€ 28.99^*

Basetech 1574783 Drill bit sharpener

Basetech 1574783 Drill bit sharpener

Conrad Electronic

€ 10.99^*

HELIOS PREISSER 0321302 Marking gauge Steel rust-proof

HELIOS PREISSER 0321302 Marking gauge Steel rust-proof

Conrad Electronic

€ 30.99^*

Total price:

€ 70.97^*

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Basetech 1574783 Drill bit sharpener

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