Leak resistant construction

It allows a fast connection for the hose outlet of 18mm hoses

keeping the upper liner intact

Fixes leaking outlet valves

suttontools Spade Bit 8mm D5010800 Storage & Organization Leak resistant constructionThe Sutton Tools Spade Bit (8mm) brings the latest cutting technology to timber drilling, delivering speeds up to 5x faster than standard spade bits. Whether you're running cable, installing plumbing, or framing up, this bit powers through timber and light building materials with clean entry and minimal breakout on exit saving time and keeping your finish tidy. The integrated power chip breaker clears waste efficiently while the heavy duty 1 4" shank