Clipacore offers a range of solutions ideal for Gas Engineers. In addition to the Clipacore Quick Release system, we have: DUOCUT Pro to achieve a perfectly uniform core hole expansion every time. Condemsemate Pro - to upgrade gas boiler overflow pipes to 32mm waste pipes (or larger). Fluemate Pro - the safe and straightforward solution for drilling flue pipes for Gas Boilers. Each system makes a gas engineer's work both quicker and safer. Combine them with the Clipacore Xpresscut Plumbers Kit, to obtain the perfect setup for Gas Engineers.