Excellent value set of 3 step drills and an automatic centre punch.
These are inexpensive step drills – great for drilling test points in galvanised ducting with no burs …. and no need for a pilot hole. Accurate drilling using the centre-punch which ensures the selected blind grommet or ‘bung’ fits neatly and securely.
I have used much more expensive variants … and yes they last a bit longer than these units …. but not that much longer and I find these ones are certainly the better value.
3 drill bits if different (overlapping) sizes; 4-12mm, 4-20mm and 4-32mm
- High Speed Steel
- 1/4″ shank
- Automatic Centre Punch
Packaging may differ from image.