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HSS Cobalt Drill BitsHSS Cobalt Drill Bits

These drill bits can function at higher temperatures than standard HSS bits, but require the use of coolant. Their D-tip (split point) makes them ideal for hard steel, but they can be used to drill a range of other metals. The Bosch HSS cobalt drill bit range is available in diameters between 2mm and 13mm.

Bosch 10.0mm HSS-Co Drill Bit

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£8.15 £9.78

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Bosch 11.0mm HSS-Co Drill Bit

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£9.77 £11.72

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Bosch 12.0mm HSS-Co Drill Bit

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£12.63 £15.16

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Bosch 13.0mm HSS-Co Drill Bit

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£14.83 £17.80

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Bosch 2.0mm HSS-Co Drill Bit

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£1.15 £1.38

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Bosch 2.5mm HSS-Co Drill Bit

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£1.21 £1.45

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Bosch 3.0mm HSS-Co Drill Bit

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£1.35 £1.62

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Bosch 3.5mm HSS-Co Drill Bit

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£1.65 £1.98

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Bosch 4.0mm HSS-Co Drill Bit

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£1.72 £2.06

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Bosch 4.5mm HSS-Co Drill Bit

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£2.04 £2.45

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Bosch 5.0mm HSS-Co Drill Bit

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£2.18 £2.62

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Bosch 5.5mm HSS-Co Drill Bit

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£2.48 £2.98

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  • HSS Cobalt Drill Bits  

HSS-Co Drill BitsWhat are HSS drill Bits?

‘High speed steel’ bits are very hard and have a high resistance to heat which allows them to drill into various materials. They can be drilled into metal, hardwood and most other materials. They cut at a higher speed than carbon steel bits which have largely been replaced by them now.

What Are Cobalt bits?

Cobalt drill bits are variations of high speed steel drill bits that are ideal for use with drill stands and pillar drills. They are a steel alloy with more cobalt, which allows them to function at higher temperatures. They feature a D-tip (split point) that makes them perfectly optimised for hard steel, but they can also be used to drill a range of other types of metal.

The disadvantages of HSS-Co drill bits are that they are more brittle and more expensive to purchase than normal HSS drill bits, and also require the use of coolant. However, cobalt HSS drill bits are well worth the extra cost for frequent drilling and tougher applications.

Need more advice about Bosch HSS Cobalt Drill Bits?

Then get in touch! We have an excellent team of power tool experts who will more than happy to help make sure that you always buy the correct accessory for the job. We can also help with any usage or safety concerns that you might have. Get in touch via our contact us page!