HSS COBALT PREMIUM Ground Drill Set – 19pc – ForgeMaster

The ForgeMaster 19 piece HSS cobalt drill set is the kind of thing that earns its keep quickly. Covering 1.0mm through to 10.0mm in clean 0.5mm increments, this set gives you the full working range for most drilling tasks on site or in the workshop. The cobalt content is what separates these from your average HSS bit — it allows the drill to maintain its hardness at elevated temperatures, which matters considerably when you are pushing through stainless steel, hardened plate or tough alloys where a standard bit would be blunt before you have finished the job.

Each drill in the ForgeMaster 19 piece HSS cobalt drill set is fully ground rather than rolled, which means tighter tolerances and a cleaner cutting edge straight out of the box. Rolled bits are cheaper to produce and it shows — ground bits hold their size more accurately and last longer under repeated use. If you are drilling to a specific tolerance, that distinction is not trivial.

Where the ForgeMaster HSS Cobalt Set Earns Its Keep

Fabricators, engineers, and metalworkers are the obvious audience here, but these bits are equally at home in the hands of a plumber drilling through stainless fittings or a site joiner hitting an unexpectedly hard fixing. Cobalt bits are also well suited to cutting through abrasive materials that would chew through a standard bit in short order — think cast iron, titanium alloys, and heat-treated steel.

The set arrives in a steel display box with each size seated in its own slot. That sounds like a minor detail, but keeping drill bits in order and protected from rattling around in a van drawer is the sort of thing you only appreciate after losing the 4.5mm for the third time in a month. The case keeps everything organised and identifiable at a glance.

Sizes included: 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm, 7.0mm, 7.5mm, 8.0mm, 8.5mm, 9.0mm, 9.5mm, 10.0mm.