From softwood and MDF to hardwood and timber framing — drilling wood cleanly depends on choosing the right bit.
Here are the most commonly used options for reliable, professional results.
Cobalt drill bits are the best all-round choice for hardened or stainless steels. Made with 5% cobalt alloy for high heat resistance and longer edge retention. Run slow, use steady pressure, and keep the bit cool for best results. HSS drill bits are not recommended for hardened steel - most will burn out or fail quickly. Only use on very light-duty work or if drilling into already-softened edges.
Designed for cutting large-diameter holes in steel, plastic, and wood — including sheet metal, trunking, junction boxes, and panels. Best used at slow speed with steady pressure to avoid heat build-up, melting, or snagging. Ideal for wide openings in worktops, cladding, or electrical fittings.