Hole saw bi-metal Premium in situ 110/127 mm — Glob GLOB-WYRZ-110-127

Hole saw bi-metal Premium in situ 110/127 mm — Glob GLOB-WYRZ-110-127 is a bi-metal hole saw designed for in situ cutting of circular openings with diameters of 110 mm and 127 mm. Manufactured by Glob for general trade and professional use, the tool is intended to create precise round holes in metal, wood, plastics and composite materials. The bi-metal construction combines a high-speed steel cutting edge with a flexible alloy body to improve durability and resistance to heat during continuous or intermittent cutting.

Advantages

The bi-metal design provides a balance of toughness and cutting performance, reducing the risk of premature tooth failure when cutting harder materials. Two fixed diameters, 110 mm and 127 mm, allow quick adaptation to different opening sizes without changing the tool. Heat resistance and durable tooth geometry help maintain cutting speed and edge life under typical construction and installation workloads. The tool is suitable for both portable drills and drill rigs equipped for hole saws.

Suitable for

• Cutting circular openings in metal sheets and thin-walled steel
• Creating holes in wood for ventilation, ducts or cable passages
• Installing plumbing fixtures, sinks and pipe penetrations
• Electrical installation work requiring precise round cutouts for boxes or conduit
• HVAC ductwork and composite panel penetrations

Key specifications

• Cutting diameters: 110 mm and 127 mm
• Material: bi-metal construction (HSS cutting edge with alloy body)
• Suitable materials: metal, wood, plastics, composite materials
• Design: in situ hole saw for direct on-site cutting
• Typical applications: construction, plumbing, electrical, HVAC

How to use

Mount the hole saw on a compatible arbor or mandrel that fits your drill according to the arbor manufacturer's instructions. Secure the workpiece and mark the center of the desired hole. Use appropriate pilot bit or centering method to maintain alignment, then start drilling at low speed to establish the cut and reduce vibration. Apply steady moderate pressure and increase speed as the cut progresses, using coolant or intermittent pauses when cutting metal to reduce heat buildup. After cutting, remove the slug carefully and deburr the edge as required.

Usage recommendations

For best results when cutting metal, use cutting lubricant and moderate feed pressure; when working with plastics or composites, lower speeds help prevent melting or chipping. Always wear appropriate personal protective equipment and follow safety guidelines for power tools.