Bi-metal hole saws are produced directly from heat-treated bi-metal saw bands. The high alloy steel body and high-speed steel teeth provide low vibration and faster sawing performance, with greater resistance to chipping and smoother cutting.

1. The bi-metal material extends the service life of the hole saw by 30%.

2. The addition of 8% cobalt makes the teeth harder, enabling cutting of a wide range of materials from wood, plasterboard, artificial marble boards, plastic products, non-ferrous metals, aluminum, steel plates and stainless steel plates.

3. The uniquely designed variable-tooth hole saw combines the fine cutting of a constant-pitch hole saw with the fast cutting and easy chip removal of a variable-pitch hole saw, providing dual functions.

4. Compared with other hole saws, it is less likely to pull teeth, lose teeth or produce long chips.

5. Cutting depth reaches 38mm.

6. Cutting diameter ranges from 14mm to 210mm.

7. Usage notes: when cutting wood, lift the power tool up and down to facilitate chip removal. When cutting metal materials, it is best to use cutting fluid to extend the service life of the hole saw.