Metal Drill Bits & Sets for Sale

High speed steel (HSS) cobalt drill bits are essential for those looking to drill through hard metals. Whether it’s cast iron, titanium or stainless steel, our range of Milwaukee ground cobalt drill bits will be up to the task. 

Milwaukee Step Drill Bits are durable and designed to drill through most metals. With laser etched markings you will always know your hole sizes...no guess work!

Thunderweb Drill Bits are shaped so it gets thicker towards the back of the drill bit. Standard drill bits have a constant thickness throughout their length. 

Titanium Coated Drill Bits, otherwise known as TiN coated drill bits, are high-hardness, high speed steel (HSS) drill bits built for heavy metal drilling.  

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Milwaukee 4932352352 HSS-G Thunderweb Metal Drill Bits 4.0mm 2pk
    • Accepts higher feed pressure and torque
    • Metal drill bits HSS Ground - DIN 338
    • Polished finish
    The Milwaukee 4932352352 Thunderweb Metal Drill Bit is ideal for drilling very hard materials and curved surfaces with the use of the 135° split point. Learn More
    £1.48 £1.23
    Milwaukee 4932352468 HSS-R Metal Drill Bit Set - 19pk
    • Metal Drilling
    • HSS-R Drill Bits
    • Straight Shanks
    The 4932352468 Set from Milwaukee includes 19 pieces of HSS-R Metal Drill Bits. Learn More
    £16.31 £13.59
    Milwaukee 4932363476 HSS 4.2mm Drill Bits 10pk
    • High speed steel rollforged metal drill bits produced according to DIN 338.
    • Oxide coating enables quick swarf removal. Normal point shaped cutting tip with 118° angle.
    • Type N flute normal angle
    The Milwaukee 4932363476 HSS 4.2mm Drill Bits are ideal for drilling into cast iron, steel, alloyed and non-alloyed material up to 800N/mm². Learn More
    £5.20 £4.33
    Milwaukee 48899265 4-30mm Step Drill Bit
    • The Rapid Strike Tip™
    • The optimized SHOCKZONE™
    • 12 steps
    The Milwaukee 48899265 is part of Shockwave Impact Duty™ step drills range. Learn More
    £108.89 £90.74
    Milwaukee 4932352351 HSS-G Thunderweb Metal Drill Bits 3.5mm 2pk
    • Metal Drill Bit design is unique, with a conical shaped web which gets thicker towards the back of the drill bit
    • It has a parabolic web cross section that gives a larger web thickness increasing the strength of the bit, and prevents breakage
    • The Thunderweb flute form ejects hot chips rapidly, dissipating heat better, increasing the life span and working time.
    The Milwaukee 4932352351 Thunderweb Metal Drill Bit is ideal for drilling very hard materials and curved surfaces with the use of the 135° split point. Learn More
    £1.40 £1.17
    Milwaukee 4932352470 HSS Ground Cobalt Drill Bits 19pk
    • Produced according to DIN 338.
    • 5% Cobalt content.
    • Withstands high drilling heat.
    Milwaukee 4932352470 HSS Ground Cobalt Drill Bits are ideal for drilling high alloy content steels and metals with tensile strengths over 1000N/mm² such as heat and acid proof steels and stainless steels. Learn More
    £71.71 £59.76
    Milwaukee 4932352359 HSS-G Thunderweb Metal Drill Bit 6.5mm
    • THUNDERWEB Design
    • Accepts higher feed pressure and torque
    • 135° Split Point
    The Milwaukee 4932352359 Thunderweb Metal Drill Bit is ideal for drilling very hard materials and curved surfaces with the use of the 135° split point. Learn More
    £1.81 £1.51
    Milwaukee 4932352350 HSS-G Thunderweb Metal Drill Bits 3.2mm 2pk
    • Parabolic web cross section: Large web thickness. Strength built in.
    • Flute geometry - Thunderweb flute form ejects hot chips rapidly. Dissipates heat better increasing life time.
    • 135° Split point - Precision starting, drill bit won't walk on material surface.
    The Milwaukee 4932352350 Thunderweb Metal Drill Bit is ideal for drilling very hard materials and curved surfaces with the use of the 135° split point. Learn More
    £1.40 £1.17
    Milwaukee 4932352358 HSS-G Thunderweb Metal Drill Bit 6.0mm
    • Flute geometry
    • 135° Split point
    • Polished finish
    The Milwaukee 4932352358 Thunderweb Metal Drill Bit is ideal for drilling very hard materials and curved surfaces with the use of the 135° split point. Learn More
    £1.66 £1.38
    Milwaukee 4932352363 HSS-G Thunderweb Metal Drill Bit 8.0mm
    • The 135° split point allows for precision starting, quick penetration, requires less effort/feed pressure, and perfect for drilling very hard materials.
    • They are great for drilling on curved surfaces.
    • The open flute form also reduces drill drawback, especially when drilling deeper holes.
    The Milwaukee 4932352363 Thunderweb Metal Drill Bit is ideal for drilling very hard materials and curved surfaces with the use of the 135° split point. Learn More
    £2.98 £2.48
    Milwaukee 4932363454 HSS 2mm Drill Bits 10pk
    • High speed steel rollforged metal drill bits produced according to DIN 338.
    • Oxide coating enables quick swarf removal. Normal point shaped cutting tip with 118° angle.
    • Type N flute normal angle
    The Milwaukee 4932363454 HSS 2mm Drill Bits are ideal for drilling into cast iron, steel, alloyed and non-alloyed material up to 800N/mm². Learn More
    £3.32 £2.77
    Milwaukee 4932363474 HSS 4mm Drill Bits 10pk
    • High speed steel rollforged metal drill bits produced according to DIN 338.
    • Oxide coating enables quick swarf removal. Normal point shaped cutting tip with 118° angle.
    • Type N flute normal angle
    The Milwaukee 4932363474 HSS 4mm Drill Bits are ideal for drilling into cast iron, steel, alloyed and non-alloyed material up to 800N/mm². Learn More
    £4.27 £3.56
    Milwaukee 4932363479 HSS 4.5mm Drill Bits 10pk
    • High speed steel rollforged metal drill bits produced according to DIN 338.
    • Oxide coating enables quick swarf removal. Normal point shaped cutting tip with 118° angle.
    • Type N flute normal angle
    The Milwaukee 4932363479 HSS 4.5mm Drill Bits are ideal for drilling into cast iron, steel, alloyed and non-alloyed material up to 800N/mm². Learn More
    £5.35 £4.46
    Milwaukee 4932363494 HSS 6mm Drill Bits 10pk
    • High speed steel rollforged metal drill bits produced according to DIN 338.
    • Oxide coating enables quick swarf removal. Normal point shaped cutting tip with 118° angle.
    • Type N flute normal angle
    The Milwaukee 4932363494 HSS 6mm Drill Bits are ideal for drilling into cast iron, steel, alloyed and non-alloyed material up to 800N/mm². Learn More
    £6.65 £5.54
    Milwaukee 48894710 HSS Red Hex Shockwave HSS 4.5mm Ground Tin Metal Drill Bit
    • Ideal for use with impact drivers and drill drivers
    • Titanium coat
    • The flute design enables users a faster material ejection
    Milwaukee 48894710 HSS Red Hex Shockwave HSS Ground Tin Metal Drill Bit is ideal for use with impact drivers and drill drivers due to the impact rated drill bits that have 1/4 hex shank. Learn More
    £1.52 £1.27
    Milwaukee 4932363269 HSS 6.5mm x 101mm Ground Cobalt Drill Bit
    • Produced according to DIN 338.
    • 5% Cobalt content.
    • Withstands high drilling heat.
    Milwaukee 4932363269 HSS Ground Cobalt Drill Bit is ideal for drilling high alloy content steels and metals with tensile strengths over 1000N/mm² such as heat and acid proof steels and stainless steels. Learn More
    £3.72 £3.10
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    What should I be using a cobalt drill bit for? 

    Cobalt drill bits are best suited to metal drilling due to their excellent resistance to the high drilling heat generated when working with abrasive hard metal materials. They are, in fact, cobalt tipped drill bits, with the Milwaukee product line using 95% high speed steel alloyed with 5% cobalt. 

    Utilising a split point shaped cutting tip with a 135 degree angle to prevent walking and improve centring, Milwaukee ground cobalt drill bits are suitable for drilling high alloy content metals with tensile strengths of over 1000N/mm². 

    Because of their relatively high cost, cobalt drill bits are not recommended for general purpose use. However, their strength and durability make them ideal for repetitive drilling of steel and other metals. Through Milwaukee, we are proud to stock a product that is designed to give you the fastest and most accurate finish to your metal work. 

    Need some help? 

    Don’t be afraid to take advantage of our team’s expertise. At SGS Engineering we pride ourselves on going the extra mile for our customers and providing the best possible service. Need some extra help with cobalt drill bits? Put our knowledge to the test. No matter your level of experience, we’re here to help. 

    We want you to be confident in the purchase you’re making, which is why we offer 60-day, hassle-free returns on all of our products, as well as free delivery on all orders over £50. The SGS team are available to contact online or via our sales helpline, so please don’t hesitate to get in touch. 

    Help Centre

    We’ve set up an online help centre featuring a number of useful how-to guides on our products and general engineering advice. If you’re looking at cobalt drill bits for metal work, here are a few you may find useful.
    • Drill & driver bit selection guide:
      Do you need cobalt drill tips or does your job require something else? Have a look at this guide to get an understanding of all things drill bits and drivers.
    • How to drill perfectly:
      If you’re going to invest in a high quality HSS cobalt drill bit set, you need to know what you’re doing with it. Check out our guide to nailing down good drilling technique.