22mm Drill Bits

Take on heavy-duty construction and large installation tasks with our professional range of 22mm drill bits. Built to endure high torque applications, these heavy-duty bits are designed to drive cleanly through tough materials without wandering or binding. Whether you are sinking large masonry anchors, routing thick plumbing pipes through joists, or boring into structural metals, having a dedicated 22mm bit ensures rapid, accurate results and minimises frustrating downtime on site.

We offer a comprehensive selection of 22mm profiles to suit your specific project needs. Choose from high-performance SDS plus and SDS max hammer bits for powering through dense concrete, alongside extreme flat wood and deep-boring auger bits for rapid timber clearance. We also stock reduced-shank HSS blacksmith bits for metalwork, as well as specialised dry diamond hole saws for clean cuts in hard ceramic tiles. Stock up on dependable accessories from industry-leading brands like Bosch, Milwaukee, DeWalt, Toolpak, and Mexco.

Frequently Asked Questions | FAQs

What is a 22mm Blacksmith drill bit?

Blacksmith drill bits (also known as reduced-shank bits) have a large 22mm cutting head but a stepped-down base (typically 10mm or 13mm). This design allows you to drill large 22mm holes into heavy-duty metals like steel and iron using a standard drill chuck, without needing to invest in a larger, specialised power tool.

What is the best 22mm drill bit for routing thick pipes through joists?

For routing large 22mm plumbing pipes or thick cables through structural timber, a 22mm auger bit or a flat wood (spade) bit is the best choice. Flat wood bits are great for fast, rough clearance, while auger bits feature a threaded tip and deep spiral flutes that pull the bit smoothly through thick timber, efficiently clearing large amounts of sawdust to prevent jamming.

Can I use a 22mm SDS Plus bit in a standard hammer drill?

No, SDS Plus and SDS Max drill bits have specialised slotted shanks designed specifically for the spring-loaded chucks of SDS rotary hammer drills. They will not fit securely into a standard 3-jaw chuck found on typical combi or hammer drills. If you are using a standard drill, you will need to look for a masonry bit with a straight or hex shank.