Optimum Centre drill bit set 10 pcs. 0.75-4.5 mm HSS

4.5 mm
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Delivered between Mon, 14.9. and Thu, 17.9.
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Product details

The Optimum centering drill set includes ten precisely manufactured drills with diameters ranging from 0.75 to 4.5 mm. These drills are designed according to DIN 333 Form A and offer high quality suitable for various applications in metalworking. The drills are made from high-quality HSS (high-speed steel), giving them a tensile strength of up to 750 N/mm². The right-cutting conical mantle grind with a point angle of 60° ensures precise centering and allows for clean starting holes. The practical plastic case provides safe and organized storage for the drills, keeping them readily accessible at all times. This set is ideal for professionals and hobbyists who value precision and durability.

  • High-quality HSS for high tensile strength
  • Right-cutting conical mantle grind with 120°
  • Point angle of 60° for precise centering
  • Suitable for starting holes and subsequent drilling
  • Practical plastic case for storage.

Key specifications

Metal type
Steel
Drill Type
Centre drill
Drill diameter
4.5 mm

General information

Item number
37510803
Manufacturer
Optimum
Category
Drill bit insert
Manufacturer No.
3203010
Release date
11.8.2023
Sales rank in Category Drill bit insert
1266 of 32837

Material

Metal type
Steel
Material group
Metal
Material
HSS

Drill bit properties

Drill Type
Centre drill
DIN standard
DIN 333R

Origin

Country of origin
China

Voluntary climate contribution

CO₂ emissions
1.93 kg
Climate contribution
CHF 0.11

Scope of delivery

Scope of delivery
1, 1,5, 1,6, 10-piece: 0.75, 2, 2,5, 3, 3,15, 4, 5 mm

Product dimensions

Drill diameter
4.5 mm

30-day right of return
24 Months Warranty (Bring-in)
1 additional offer

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Reviews & Ratings

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: Digitec Galaxus
  • Optimum
    Not enough data
  • 1.Bosch Home & Garden
    0 %
  • 1.Bosch Professional
    0 %
  • 1.Donau
    0 %
  • 1.Exact
    0 %

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: Digitec Galaxus
  • Optimum
    Not enough data
  • 1.Bosch Professional Zubehör
    0 days
  • Alpen
    Not enough data
  • Benson
    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: Digitec Galaxus
  • Optimum
    Not enough data
  • 1.Benson
    0 %
  • 1.DIY
    0 %
  • 1.RS PRO
    0 %
  • 1.technocraft
    0 %
Source: Digitec Galaxus