Hole saw set, Bosch, bimetal HSS, 14 pieces

Bosch 14-piece bimetal HSS hole saw set provides a selection of saws for cutting circular openings in metal, wood and plastics. The set is designed for use with hand drills and drill presses and combines HSS cutting edges with bimetal construction to maintain cutting performance and extend service life. The assortment of diameters covers common installation and maintenance requirements, enabling accurate holes for pipes, conduits, fittings and other through-holes.

Advantages

The bimetal HSS construction offers improved toughness and wear resistance compared with plain high-speed steel, helping the saws resist chipping and dulling during repeated cuts. A variety of diameters in one set reduces the need to buy individual saws and ensures quick selection on the job. The saw teeth geometry and HSS cutting edge are intended to provide smoother cutting action and reduced heat build-up when used with appropriate drilling speed and lubrication on metal work. The set is compatible with standard arbor and pilot drill arrangements for secure mounting in drills and presses.

Suitable for

• Cutting circular openings in thin to medium-thickness metal sheets and pipes
• Drilling holes in wood for fittings, electrical boxes and plumbing
• Creating holes in plastics and composite panels
• Installation and maintenance tasks requiring multiple hole diameters

Key specifications

• Material: bimetal high-speed steel (HSS) cutting edge for wear resistance and toughness
• Set size: 14 pieces covering a range of diameters for common hole sizes
• Compatibility: designed for use with standard drill arbors and pilot drills in hand drills and drill presses
• Suitable work materials: metal sheets, pipes, wood, plastics and composite panels
• Typical applications: installation, maintenance, electrical, plumbing and HVAC openings

How to use

Select the hole saw diameter appropriate for the required opening and install it on a compatible arbor with a pilot drill. Securely clamp the workpiece to prevent movement. Use a suitable drill or drill press, set an appropriate rotational speed for the material, and apply steady, even pressure while drilling. For metal work, use cutting lubricant to reduce heat and extend tool life; for wood and plastics, moderate speed and firm control will produce clean cuts. After cutting, remove any burrs and inspect the hole for fit and finish.

Usage recommendations

Use progressive feed and correct rotational speeds for each material: lower speeds with lubricant for metals, moderate speeds for wood, and slower speeds for some plastics to avoid melting. Always wear appropriate eye and hand protection and secure the workpiece before drilling.