CMT 550-118X Multi-Purpose TCT Hole Saw - 4-5/8" (118mm) is a professional-grade, carbide-tipped hole saw engineered for demanding multi-material cutting applications. Featuring a hardmetal (HW) tooth construction and a right-hand rotation design, this 118mm hole cutter delivers consistent, clean results across a wide range of materials - from wood and plywood to plasterboard, plastics, bricks, and aerated concrete. With 6 TCT teeth and a 60mm cutting depth, it is a go-to tool for contractors and tradespeople who need reliable, repeatable performance across job sites.

Key Features

• 4-5/8" (118mm) cutting diameter - sized for standard large-bore applications including electrical rough-in, HVAC, and plumbing penetrations through a wide variety of building materials.
• Hardmetal (HW) carbide-tipped teeth - construction-grade TCT cutting edges maintain sharpness longer than standard bi-metal saws, reducing replacement frequency and downtime on the job.
• 6 TCT teeth - an optimized tooth count that balances cutting speed with smooth hole quality, whether you are cutting soft wood, sheet goods, or harder masonry-type materials.
• 60mm cutting depth - accommodates thick stock, double-layer assemblies, and deep wall sections without needing a second pass or a deeper saw.
• Hexagonal shank - the hex drive interface provides a secure, slip-resistant connection to the arbor, reducing torque loss and improving control at high loads.
• Right-hand rotation (RH) - compatible with standard corded and cordless drills and drill presses, requiring no special tooling or reverse-mode equipment.
• Multi-purpose material capability - engineered to cut wood, plywood, MDF, laminates, plasterboard, plastics, bricks, aerated concrete, and soft tiles, eliminating the need to switch between specialized bits.

Why This Product

• The 4-5/8" (118mm) diameter fills a critical size gap for tradespeople cutting large-diameter penetrations in walls, ceilings, and floors - matching standard knockout and conduit sizing used across electrical and plumbing work.
• Hardmetal (HW) TCT construction means this hole saw handles abrasive or variable materials - including bricks, aerated concrete, and laminates - that quickly dull standard bi-metal saws, extending the usable life of the tool.
• With a 60mm cutting depth and a hexagonal shank, this saw is well-suited for thick substrate assemblies and heavy-duty drill presses as well as handheld cordless and corded drills, making it a versatile single tool across multiple machine types.
• The multi-material design means a single hole saw can follow a crew through mixed-material work sequences - wood framing, plasterboard finishing, and tile or masonry detail work - without swapping tools or changing setups.

Specifications

• Manufacturer Part Number: 550-118X
• Brand: CMT Orange Tools
• Diameter: 4-5/8" (118mm)
• Cutting Depth: 60mm
• Number of Teeth: 6
• Tooth Material: HW (Hardmetal - Carbide-Tipped)
• Shank: Hexagonal
• Rotation: RH (Right-Hand)

Approved Applications

• Hole cutting in wood and plywood
• Hole cutting in MDF and laminates
• Hole cutting in plasterboard and drywall assemblies
• Hole cutting in plastics and composite sheet materials
• Hole cutting in bricks and aerated concrete
• Hole cutting in soft tiles