Hole Saw Bosch OTWORNICA PRO Multi Material 19 mm

Bosch OTWORNICA PRO Multi Material 19 mm is a 19 mm hole saw engineered for making precise round openings in a range of materials. Designed for use with compatible drills, this hole saw provides consistent 19 mm diameter holes for installations such as pipes, cables, and fixtures. The tool is suitable for professional tradespeople and DIY users who require repeatable, clean cuts in different substrates.

Advantages

The cutting edge geometry and hardened teeth deliver accurate, burr-minimized holes with reduced risk of material damage. Its Multi Material construction balances cutting performance across wood, plastics, drywall, and non-ferrous metals, offering versatility without frequent tool changes. A standard arbor interface allows quick attachment to most drills and ensures reliable concentricity during operation.

Suitable for

• Installing electrical conduit and cable routing
• Creating openings for plumbing and small-diameter pipes
• Mounting fixtures, handles, or hardware that require precise round holes
• General workshop and on-site cutting tasks in wood, plastic, drywall, and light metal

Key specifications

• Nominal cutting diameter: 19 mm
• Compatible with standard drill arbors and chucks
• Suitable for multi-material use: wood, plastics, drywall, light non-ferrous metals
• Hardened cutting teeth for improved wear resistance
• Designed for creating clean, concentric holes with minimal burr

How to use

Secure the hole saw to an appropriate arbor and tighten according to the drill and arbor manufacturer’s instructions. Mark the center of the desired hole on the workpiece and, if possible, use a pilot drill or guide to maintain position. Start drilling at low speed to engage the teeth, then increase speed as needed while applying steady, even pressure. Clear chips periodically to prevent clogging and to maintain cutting efficiency. After cutting, remove the core and deburr edges if necessary.

Usage recommendations

Use appropriate personal protective equipment, including safety glasses and gloves. Match drill speed and feed pressure to the material being cut: lower speeds for metals and higher speeds for wood and plastics. For best results when cutting thin sheet metals, support the workpiece to prevent deformation. Inspect the cutting teeth before use and replace the hole saw if wear affects cut quality.