Cobalt Drill Bits

These heavy-duty drill bits are coated in cobalt for increased heat resistance and durability when drilling metal and steel. They can also be used on alloy, hardened steel, cast iron, titanium and stainless steel. Choose cobalt drill bits when you need to bore holes into hard surfaces.

HSS Drill Bits vs HSS Cobalt Bits



HSS stands for high-speed steel. These durable drill bits are designed to withstand the additional heat from high-speed drilling. Cobalt coated HSS drills offer even more protection. Titanium coated HSS bits are also available, but cobalt is more durable long-term making HSS cobalt drill bits a premium choice.

Cobalt drill bits come in various sizes and can be purchased as single bits or as part of a set. At Toolstation, you’ll find a quality selection of bits and sets from brands such as DeWalt, Heller and Toolpak.
Heller Heller Heller / Cobalt Pro Drill Bit 3mm
20% Off
( 106 )

Product code: 16851

Cobalt Pro Drill Bit 3mm

£1.43 was £1.79

ex. VAT £1.19 Each

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Heller Heller Heller / Cobalt Pro Drill Bit 4mm
20% Off
( 106 )

Product code: 36117

Cobalt Pro Drill Bit 4mm

£1.75 was £2.19

ex. VAT £1.46 Each

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Heller Heller Heller / Cobalt Pro Drill Bit 4.5mm
20% Off
( 106 )

Product code: 55330

Cobalt Pro Drill Bit 4.5mm

£1.75 was £2.22

ex. VAT £1.46 Each

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Heller Heller Heller / Cobalt Pro Drill Bit 5mm
20% Off
( 106 )

Product code: 21358

Cobalt Pro Drill Bit 5mm

£1.83 was £2.34

ex. VAT £1.52 Each

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Heller Heller Heller / Cobalt Pro Drill Bit 6mm
20% Off
( 106 )

Product code: 42541

Cobalt Pro Drill Bit 6mm

£2.63 was £3.31

ex. VAT £2.19 Each

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Heller Heller Heller / Cobalt Pro Drill Bit 6.5mm
20% Off
( 106 )

Product code: 28699

Cobalt Pro Drill Bit 6.5mm

£2.79 was £3.51

ex. VAT £2.32 Each

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Heller Heller Heller / Cobalt Pro Drill Bit 3.5mm
20% Off
( 106 )

Product code: 10403

Cobalt Pro Drill Bit 3.5mm

£1.43 was £1.84

ex. VAT £1.19 Each

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