Hole saw, Bosch 2608594230, cobalt steel, single piece, Ø 70 mm, for drill

Bosch 70 mm cobalt steel hole saw in a single-piece design is intended for creating precise circular cutouts with electric drills. The tool is manufactured from cobalt-alloy steel to provide elevated heat resistance and wear performance when cutting medium-hard materials. Supplied as one hole saw, this 70 mm diameter tool weighs approximately 240 g and is suitable for installation, construction and maintenance work where durable, accurate holes are required.

Advantages

The cobalt steel construction increases resistance to high temperatures and friction, which helps extend tool life during continuous or demanding drilling. Single-piece manufacturing enhances rigidity and reduces the risk of component loosening during use, delivering stable, concentric cuts. The 70 mm diameter covers common requirements for pipe, conduit and fixture passages while remaining compact and easy to handle with standard electric drills.

Suitable for

• Creating 70 mm circular openings for pipes and conduits
• Installing fixtures and recessed fittings in construction and renovation
• Cutting medium-hard materials such as thin steel sheets and non-ferrous metals
• General-purpose hole cutting with electric drills on job sites and workshops

Key specifications

• Material: cobalt-alloy steel for improved heat resistance
• Design: single-piece hole saw for increased rigidity
• Diameter: 70 mm
• Weight: approximately 240 g
• Intended tool: electric drill compatibility

How to use

Select an appropriate electric drill with sufficient power and a compatible arbor or adaptor. Secure the workpiece and mark the center of the required opening. Fit the hole saw to the arbor, clamp it firmly, and set the drill to an appropriate speed for the material being cut. Apply steady pressure and maintain alignment to achieve a concentric, accurate cut. Clear chips regularly and allow the tool to cool if cutting generates significant heat.

Usage recommendations

For best results when cutting medium-hard materials, use moderate drill speeds and steady feed pressure to reduce overheating. Use cutting fluid or lubricant when working with ferrous metals to extend tool life. Inspect the cutting edge before use and replace the hole saw if wear or damage is evident to maintain cutting accuracy and safety.