Hole saw Dedra TCT 111 mm 5/8'' — bi-metal cutting tool for wood, metal and plastics

Dedra TCT 111 mm 5/8'' hole saw is a circular cutting attachment with tungsten carbide tipped (TCT) teeth designed to cut clean 111 mm diameter holes. Supplied with a 5/8'' (16 mm) arbor thread, this bi-metal cutting tool is intended for use with corded and cordless drills of compatible arbor size. It is engineered to cut through wood, soft metals, plastics and composite panels for a range of installation and fitting tasks.

Advantages

The TCT teeth provide improved cutting life and maintain edge sharpness when compared with standard high-speed steel teeth, reducing wear during repetitive cuts. The 111 mm diameter gives a consistent round aperture for door hardware, cable pass-throughs and electrical boxes. The 5/8'' arbor thread ensures secure mounting on drills with matching arbors and allows straightforward accessory changes. The bi-metal construction balances cutting performance and blade toughness for mixed-material work.

Suitable for

• Creating holes for door locks, latch plates and cylinder fittings
• Cutting holes for electrical boxes and conduit entry
• Making openings for plumbing fixtures and pipe penetrations
• Fabricating pass-throughs in wood, soft metals, plastics and composite panels

Key specifications

• Cutting diameter: 111 mm
• Arbor thread size: 5/8" (16 mm)
• Tooth type: tungsten carbide tipped (TCT)
• Construction: bi-metal body with TCT cutting edge
• Compatible materials: wood, soft metals, plastics, composite panels

How to use

Mount the hole saw onto a drill with a matching 5/8'' arbor thread and ensure the arbor and pilot bit (if fitted) are securely tightened. Mark the centre of the hole, position the pilot bit against the mark, and start the drill at low speed to establish the cut. Apply steady, even pressure and increase speed as the blade penetrates the material, clearing chips periodically to avoid overheating. For metal and dense materials, use cutting lubricant and moderate speed; for wood and plastics, use higher speed and ensure proper clamping of the workpiece to prevent movement.

Usage recommendations

Use appropriate personal protective equipment including eye protection and gloves. When cutting metals or composite panels, use coolant or cutting oil to extend blade life and reduce heat buildup. Avoid forcing the blade; allow the TCT teeth to cut at their intended feed rate. Inspect the hole saw before use for damage or missing teeth and replace if necessary to maintain safe and accurate cutting.