Your data. Your choice.

If you select «Essential cookies only», we’ll use cookies and similar technologies to collect information about your device and how you use our website. We need this information to allow you to log in securely and use basic functions such as the shopping cart.

By accepting all cookies, you’re allowing us to use this data to show you personalised offers, improve our website, and display targeted adverts on our website and on other websites or apps. Some data may also be shared with third parties and advertising partners as part of this process.

Legal noticePrivacy notice

Bluemaster Professional drill bit for stoneware, porcelain and slate ø4 mm

4 millimetres
Price in EUR including VAT
Ratings
BrandMore from Bluemaster
Delivered between Sat, 20.6. and Wed, 24.6.
Only 4 pieces in stock at supplier
Free shipping starting at 30,–

Drill diameter2

Product details

The professional drill bit for stoneware, porcelain, and slate with a diameter of 4 mm is specifically designed for working with very hard and abrasive ceramics. Manufactured according to DIN 8039, this drill offers a revolutionary high-performance carbide insert geometry that enables efficient and precise drilling. The ground body ensures improved stability and durability during use. To achieve optimal results, the drill should always be used in rotary mode, with adequate cooling with water during the drilling process being essential. With a maximum speed of 1200 RPM, this drill bit is ideal for professional applications.

  • Revolutionary high-performance carbide insert geometry
  • Suitable for very hard ceramics
  • Maximum speed of 1200 RPM
  • Required cooling with water during drilling.

Key specifications

Metal type
Hard metal
Material application
Fine stoneware, Porcelain
Drill diameter
4 millimetres

General information

Item number
70296982
Manufacturer
Bluemaster
Category
Drill bit insert
Release date
13.5.2026

Material

Metal type
Hard metal
Material group
Metal
Material
Hm

Drill bit properties

Material application
Fine stoneware, Porcelain
surface finish
Ground
DIN standard
DIN 8039
Suitable for
Porcelain
borehole size
4 mm

Voluntary climate contribution

CO₂ emissions
0,1 kg
Climate contribution
EUR 0,12

Product dimensions

Drill diameter
4 millimetres
Weight
13 g

14-day cancellation right
30-day right of return
24 Months statutory warranty
Legal concerns

Compare products

Goes with

Reviews & Ratings

Statutory warranty score

How often does a product of this brand in the «Drill bit insert» category have a defect within the first 24 months?

Source: Galaxus
  • Bluemaster
    Not enough data
  • 1.Donau
    0 %
  • 1.Einhell
    0 %
  • 1.Exact
    0 %
  • 1.Famag
    0 %

Statutory warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Galaxus
  • Bluemaster
    Not enough data
  • 1.Bosch Professional Zubehör
    0 days
  • 1.DeWalt
    0 days
  • Alpen
    Not enough data
  • BGS
    Not enough data

Return rate

How often is a product of this brand in the «Drill bit insert» category returned?

Source: Galaxus
  • Bluemaster
    Not enough data
  • 1.Exact
    0 %
  • 1.OK-Line
    0 %
  • 1.RS PRO
    0 %
  • 1.technocraft
    0 %
Source: Galaxus