Hole saw Bosch Diamond Crown 72 mm diameter, 450 mm depth, 1 1/4 inch connection

The Bosch Diamond Crown 72 mm diameter hole saw with 450 mm cutting depth and 1 1/4" connection is a purpose-built tool for creating precise round openings in hard surfaces. It is designed to cut through tile, porcelain, natural stone and similar dense materials where standard hole saws wear quickly. The long cutting depth and diamond-segmented rim deliver consistent performance when used with compatible rotary drills and drill rigs, making it suitable for tasks that require deep, clean holes without excessive chipping.

Advantages

The diamond-segmented cutting edge ensures durable abrasion resistance and prolonged cutting life on hard materials. The 72 mm diameter provides a standardized opening size for fittings and fixtures, while the 450 mm depth allows drilling through thick tiles, stone slabs or layered substrates in a single operation. The 1 1/4" connection offers secure mounting to compatible drill rigs and arbor assemblies, maintaining stability and minimizing wobble for accurate holes.

Suitable for

• Drilling holes in ceramic and porcelain tiles
• Coring openings in natural stone and engineered stone
• Creating pass-throughs for plumbing and electrical fixtures in tiled surfaces
• Use with rotary drills or core drilling rigs for renovation and installation work

Key specifications

• Cutting diameter: 72 mm
• Maximum cutting depth: 450 mm
• Connection type: 1 1/4" arbor connection
• Cutting edge: diamond-segmented rim for hard materials
• Intended materials: tile, porcelain, stone and similar dense surfaces

How to use

Mount the diamond crown onto a compatible arbor with a 1 1/4" connection and secure it to the drill or drilling rig according to the tool manufacturer's instructions. Mark the center of the required opening and start drilling at low speed to establish a guide groove, then increase speed moderately while applying steady, even pressure. Use continuous or intermittent water cooling to reduce heat and remove debris when cutting tile or stone; avoid forcing the tool to prevent overheating and premature wear. After reaching the required depth, withdraw the cutter slowly and clear the hole from slurry and fragments.

Recommendations

For optimal life and hole quality, use with water cooling and appropriate drill speed for the material. Ensure the drill or rig is properly aligned and secured to prevent side loads. Replace the crown when cutting performance declines or when segments become worn.