Catalog > Test and Measurement > Test and Measurement Instruments > Toptronics Instruments Hole Saw Tungsten 20mm Tungsten / 20mm Hole Saw HellermannTyton - Hole Saw Tungsten 20mm Part No: TOP TCT20 73.03 ZAR inc for 1 Each (Quoting) Add to Cart Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features Holesaws designed for drilling through aluminium Stainless steel, mild steel and fibre cement ceiling board Hardened tungsten tips Complete with arbor Lasts up to 80% longer than standard holesaws Deep cutting depth Two cutting edges