HSS Roll Forged Metric Drill Bits – Pk

These HSS roll forged metric drill bits are a solid, no-nonsense choice for everyday drilling across a wide range of materials. The roll forging process aligns the grain structure of the steel along the length of the bit, which means better strength and a longer working life compared to cut-from-bar alternatives. If you’re going through packs of drill bits at a rate that hurts your wallet, these are worth a look.

The 135° split point is the detail that makes the real difference on site. It locates on the material immediately, so the bit doesn’t wander before it bites. You get cleaner entry, faster penetration, and less time faffing about with a centre punch on flat surfaces. For anyone drilling repetitive holes in sheet steel or structural sections, that adds up quickly.

Where HSS Roll Forged Metric Drill Bits Earn Their Keep

The black oxide finish provides a degree of lubrication and basic corrosion resistance during use. It won’t protect a neglected bit sitting in a damp toolbox for six months, but it does help with heat dissipation and reduces friction during cutting, which is exactly where cheap uncoated bits tend to fail early.

Manufactured to DIN338, these bits conform to the standard jobber length specification used across European tooling. That matters when you’re working with drill guides, stands, or any setup where consistent flute length and shank diameter are expected. No surprises.

Sizing and Pack Options

Available from 1.0mm right through to 13.0mm in a good spread of increments, with packs of five or ten depending on the size. The smaller diameters tend to go quickly, so having a few in reserve makes sense. They cover the most common fixing and pilot hole sizes used in general construction, engineering, and fabrication work. At this price point, keeping a full set stocked is genuinely practical rather than aspirational.