It is normally used on its own so that it is easy to identify cobalt steel. It also helps in retaining drilling lubricants for longer and is most suitable when drilling iron and steel.Bronze Oxide – This coating increases the stress relieving of the bit. Carbon steel can withstand higher temperatures and is more suitable for harder materials.HSS (High-Speed Steel) – HSS can withstand higher temperatures without compromising the hardness of the bit and is able to cut faster with more accuracy and efficiency.Cobalt Steel – The cobalt content increases the strength of the bit and aids in the resistance to heat and friction, so it can be used for more stubborn materials.Tool Steel with Tungsten Carbide Tips – TCT provides a longer working life for the bit while allowing for a more stable and solid tip and enabling it to withstand more rigorous drilling applications.What coatings are used to enhance drill bits?Black Oxide – An economical coating that prevents corrosion and increases stress relieving at the bit. Learn more in our drill bit sets guide.What materials are used for drill bits?Carbon Steel – This material provides a drill bit with better durability and hardness, therefore increasing the life of the bit. Having the right size and the right type of bit is key in ensuring the highest standard of work and ensuring that you can drill with confidence and accuracy. 1x - 4932363286 - 13.Drill Bit Sets Drill bits are cutting tools that are used to remove material in a piece to create a circular hole.1x - 4932363285 - 12.5mm x 151mm RED cobalt metal drill bit - (full details).1x - 4932363284 - 12.0mm x 151mm RED cobalt metal drill bit - (full details).1x - 4932363283 - 11.5mm x 142mm RED cobalt metal drill bit - (full details).1x - 4932363282 - 11.0mm x 142mm RED cobalt metal drill bit - (full details).1x - 4932363281 - 10.5mm x 133mm RED cobalt metal drill bit - (full details).1x - 4932363279 - 10.0mm x 133mm RED cobalt metal drill bit - (full details).1x - 4932363278 - 9.5mm x 125mm RED cobalt metal drill bit - (full details).1x - 4932363277 - 9.0mm x 125mm RED cobalt metal drill bit - (full details).1x - 4932363276 - 8.5mm x 117mm RED cobalt metal drill bit - (full details).1x - 4932363274 - 8.0mm x 117mm RED cobalt metal drill bit - (full details).1x - 4932363272 - 7.5mm x 109mm RED cobalt metal drill bit - (full details).1x - 4932363241 - 7.0mm x 109mm RED cobalt metal drill bit - (full details).1x - 4932363269 - 6.5mm x101mm RED cobalt metal drill bit - (full details).1x - 4932363268 - 6.0mm x 93mm RED cobalt metal drill bit - (full details).1x - 4932363267 - 5.5mm x 93mm RED cobalt metal drill bit - (full details).1x - 4932363264 - 5.0mm x 86mm RED cobalt metal drill bit - (full details).1x - 4932363262 - 4.5mm x 80mm RED cobalt metal drill bit - (full details).1x - 4932363258 - 4.0mm x 75mm RED cobalt metal drill bit - (full details).1x - 4932363256 - 3.5mm x 70mm RED cobalt metal drill bit - (full details).1x - 4932363253 - 3.0mm x 61mm RED cobalt metal drill bit - (full details).1x - 4932363251 - 2.5mm x 57mm RED cobalt metal drill bit - (full details).1x - 4932363250 - 2.0mm x 49mm RED cobalt metal drill bit - (full details).1x - 4932363249 - 1.5mm x 40mm RED cobalt metal drill bit - (full details).1x - 4932363248 - 1.0mm x 34mm RED cobalt metal drill bit - (full details).3-flat shank from 5 mm diameter for better grip and prevents chuck slippage.Suitable for drilling high alloy content steels and metals with tensile strengths over 1000 N/mm² like heat and acid proof steels and stainless steel.Split point shaped cutting tip with 135° angle for improved centering - no center punch required.Metal drill bits ground from solid extremely heat resistant cobalt-alloyed high speed steel produced according to DIN 338.Milwaukee accessory code number : 4932352471
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