- Reaction score
- 8,777
For many years I just had el cheapo 20 and 25 screwfix hole saws.
What knackers them is metal, and I’d suggest a stepper bit and some QMax 20 and 25mm punches are an excellent investment. While slower to use you get a perfect hole every time. (Cutting fluid helps too)
What knackers them is metal, and I’d suggest a stepper bit and some QMax 20 and 25mm punches are an excellent investment. While slower to use you get a perfect hole every time. (Cutting fluid helps too)