Hole Saw Bosch 37 mm — OTWORNICA PRO Multi Material, bi-metal cutting tool

Bosch OTWORNICA PRO Multi Material 37 mm is a bi‑metal hole saw designed to cut precise 37 mm diameter openings in a variety of materials. The tool combines a hardened cutting edge with a flexible backing strip to deliver a balance of durability and performance when working with wood, plastics, plasterboard and non‑ferrous metals. The hole saw is compatible with standard arbors and intended for tradespeople who need clean round cutouts for pipes, conduits and fittings.

Advantages

The bimetal construction provides resistance to wear while maintaining cutting performance across multiple materials. A reinforced tooth design reduces the risk of premature dulling when cutting abrasive or mixed substrates. Compatibility with standard arbors and common drill setups makes the hole saw easy to integrate into existing toolkits. The blade profile is engineered to produce clean edges and reduce tear‑out in softer materials.

Suitable for

• Cutting circular openings for electrical boxes, conduit entry and cable glands
• Creating holes for plumbing fixtures and pipe passages
• Installing ventilation components and small duct penetrations
• General trade work in carpentry, renovation and light metal fabrication

Key specifications

• Cutting diameter: 37 mm
• Material: bi‑metal construction (high speed steel teeth bonded to flexible backing)
• Suitable substrates: wood, plastics, plasterboard, non‑ferrous metals
• Compatibility: fits standard hole saw arbors and drill chucks
• Typical application: drill‑mounted circular cutting for pipes, conduits and fittings

How to use

Secure a compatible arbor to the hole saw and tighten according to the arbor manufacturer’s instructions. Mark the center point of the required hole, then use a pilot drill or guide to stabilize the cut if necessary. Operate the drill at an appropriate speed for the material being cut, applying steady, even pressure and allowing the blade to do the cutting. Withdraw periodically to clear chips and prevent overheating when working in metal or dense plastics. After cutting, deburr the edge if required for a neat installation.

Usage recommendations

Use appropriate personal protective equipment, including eye protection and gloves. Match drill speed and feed to the material: lower speeds for metals, higher speeds for wood and plastics. For longer tool life, avoid excessive side loading and clear debris regularly. For precise installations, use a pilot bit or centre punch to prevent walking.