Rothenberger ROFROST Rapid Pipe Freezing Kit - 2 Bottle Kit (1000003035.2) - Clearance 24mm providing a clean cut through

providing a clean cut through copper piping

Do I need to pre-drill pilot holes before using these screws

140mm Hole Saw Specification:

Premium S2 hardened carbon steel Phillips screwdriver bits

Rothenberger ROFROST Rapid Pipe Freezing Kit - 2 Bottle Kit (1000003035.2) - Clearance 24mm providing a clean cut throughPipe Freezing Kit A pipe freezing kit designed to create a temporary ice plug within pipework, allowing plumbers and to carry out repairs, maintenance and modifications without draining an entire water or heating system. Now at a clearance price with limited stock, so once they are gone, they are gone! Designed for use on 15mm and 22mm pipework, the ROFROST Rapid system can be fitted directly onto clipped pipes and requires no electrical supply. Part