Drill bit GRAPHITE 28–75 mm

GRAPHITE drill bit 28–75 mm is a set of hole saws designed to cut circular openings in wood, plastic and similar non-metallic materials within the specified diameter range. The tool is intended for use with standard power drills and drill presses when a compatible arbor or mandrel is fitted. The range of diameters from 28 mm up to 75 mm covers common requirements for installations, carpentry, plumbing and HVAC pass-throughs, enabling precise, repeatable holes for cables, pipes and fixtures.

Advantages

The GRAPHITE hole saw set provides a broad diameter range to accommodate different hole sizes without requiring multiple dedicated bits. Manufactured for cutting in wood and plastics, the design focuses on efficient material removal and smoother edges compared with improvised cutting methods. Compatibility with standard arbors and power drills makes the set versatile for workshop and on-site work, and the tool’s geometry reduces the risk of binding during drilling.

Suitable for

• Cutting circular openings for cables and conduit in wooden panels
• Creating holes for plumbing and HVAC pass-throughs
• Making apertures for fixtures, handles and recessed fittings
• Workshop and site carpentry where a range of hole sizes is required

Key specifications

• Diameter range: 28 mm to 75 mm
• Intended materials: wood, plastic and similar non-metallic materials
• Compatibility: for use with power drills and drill presses when a compatible arbor/mandrel is fitted
• Cut style: circular hole saws for through-holes and pass-throughs

How to use

Select the appropriate diameter within the 28–75 mm range for the required opening. Fit the chosen hole saw to a compatible arbor or mandrel, tighten securely and attach to the drill or drill press. Mark the center of the intended hole, start drilling at low speed to establish the pilot position, then increase speed steadily while applying consistent, moderate pressure. For thicker material or deeper cuts, withdraw periodically to clear chips and reduce heat. After cutting, remove burrs if necessary and check the fit of the inserted component.

Usage recommendations

Use appropriate personal protective equipment, clamp workpieces securely and operate drills at recommended speeds for the material. For best results in plastic, use lower speeds and avoid excessive heat; for dense woods, use steady feed and clear chips frequently. Ensure the arbor or mandrel is compatible and firmly mounted before use.