Bosch Professional HSS BI METAL HOLESAW - 70 mm

This holesaw is designed for smooth cutting in various materials, with a particular emphasis on a wide variety of metals. It can also cut wood and plastics, but its primary optimization is for metallic applications.

The maximum cutting depth for this 70 mm holesaw is 45 mm.

Yes, this holesaw requires a compatible arbor. It features an insertion end that accepts either an SDS-plus or a standard hex shank arbor, depending on the type of power drill you are using.

To extend its lifespan, always use the correct drill speed for the material, apply steady and even pressure, and use cutting fluid or lubricant when cutting metals. Avoid overheating, clear chips frequently, and store the saw properly to protect its teeth.

While the hex shank might fit some impact drivers, it is generally recommended to use this holesaw with a rotary drill. Impact drivers' high torque can sometimes be too aggressive for holesaws, especially when cutting larger diameters or through metal, potentially leading to damage to the saw or workpiece.

No, this HSS Bi-Metal Holesaw is not designed for very hard materials such as concrete, stone, or ceramic tiles. For those materials, diamond-tipped or specialized masonry holesaws are required.

Ensure the correct drill speed is selected for the material (lower speeds for harder metals). Apply steady, consistent pressure, and check the holesaw's teeth for dullness or damage. Clear any accumulated chips from the cutting area.

Reduce cutting pressure and allow the saw to cool. For metal, apply cutting fluid or lubricant to reduce friction and heat. Periodically withdraw the saw to clear chips and allow air circulation. Ensure the material is securely clamped.

Verify that the workpiece is firmly secured and not moving during the cut. Ensure the drill is held perpendicular to the surface. Maintain consistent pressure throughout the cut. A dull holesaw can also cause rough cuts; inspect and replace if necessary.