Bosch EXPERT Multi Material Power Change Plus Hole Saw - 70 x 60mm

This hole saw is designed for multi-material use, including wood, plastics, drywall, and some softer metals. For very hard metals, specialized hole saws or techniques may be required.

You need a standard power drill with a compatible chuck and sufficient power. The key requirement is a Bosch Power Change Plus arbor, which connects to the hole saw and then to your drill's chuck.

The Power Change Plus system allows for tool-free changes. Simply pull back the collar on the arbor, remove the current accessory, and push the new one on until it clicks into place.

Typically, the hole saw is sold separately from the arbor. You will need to purchase a compatible Bosch Power Change Plus arbor, which may come with a pilot drill, or as part of a starter kit.

Ensure the pilot drill is sharp and centered. Use a consistent speed and steady pressure. For materials prone to tear-out like wood, consider drilling halfway and finishing from the other side, or using a backing material.

While professional sharpening services can be used, it is often more practical to replace the hole saw when the teeth become significantly dull, especially given its robust construction and intended professional use.

The primary difference is the integrated Power Change Plus system, which allows for significantly faster and more secure accessory changes compared to traditional screw-on or clamping systems.

Ensure the arbor is a compatible Power Change Plus type. Check for any debris obstructing the connection points on both the hole saw and the arbor. Push firmly until it clicks.

Verify the hole saw is securely locked onto the arbor. Ensure the pilot drill is sharp and centered. Maintain a steady pressure and speed during cutting.

Reduce cutting speed. Apply steady, even pressure. Use a lubricant or cutting fluid for metal applications. Ensure the hole saw teeth are sharp.

Ensure you are using the correct drill speed for the material. Take breaks to allow the tool and material to cool. For very hard materials, consider a specialized bit or a more powerful drill.