Hand Tools
Integrated Internal and External Thread Pipe Threading Tool DN15 DN20 Pipe PVC Pipe Thread Cutting Tool for 1/2'' 3/4'' Pipes
Integrated Internal and External Thread Pipe Threading Tool DN15 DN20 Pipe PVC Pipe Thread Cutting Tool for 1/2'' 3/4'' Pipes
https://www.bizrate.co.uk/handtools/integrated-internal-and-external-thread-oid40758951749.html