25pc Cobalt Drill Bit Set | Split Point | Rustung

Introducing the 25pc cobalt drill bit set by Rustung. This set comprises of drills from from 1mm to 13mm in 0.5 millimetre increments. Designed for professionals to with stand daily use. Cobalt drill bits are more like ultra-HSS bits, as they can be used at higher speeds than just about any other HSS but on the market, and will retain their edge longer. They don’t need to be left to cool as long between uses, either. Cobalt drill bits are a subset of HSS (high speed steel) drill bits. They made of steel with a substantial of the element cobalt in it.

Cobalt drill bits can actually be quite tricky to manufacture. After all, its not like putting a titanium coating on a simple steel bit. The strength and hardness come from infusing cobalt into the steel itself. If you don’t know what you’re doing, you get a brittle bit that user’s can’t trust. Happily, Rustung does know what they are doing.

Rustung may be a new name to you, but Rustung cobalt drill bits are made by some of the most experienced people in the industry. The decades of expertise at this company’s command ensure that they deliver an amazing quality product, and use the most efficient processes. As we’ll get to lower in the list, this all lets them give you premium quality cobalt drill bits at an ‘unknown brand’ price.

With these drill bits being 135° split point or fully ground, there isn’t any need for pilot holes majority of the time. This is because the drills wanders less due to the points ability to remain stable. Plus with a sharper cutting edge, drilling can be carried out quicker and through tougher materials. Rustung have used 5% cobalt in this 25pc cobalt drill bit set, this gives the perfect balance for drilling without making them brittle.

These drills are excellent for cordless drills, pillar drills and lathes. Rustung drills come in a hard wearing plastic case, more durable than thin metal cases. With a sliding lock it makes it easier to maintain this drill bit set.