CMT 550-105X Multi-Purpose TCT Hole Saw - 4-1/8" (105mm) is a carbide-tipped hole saw engineered for versatile cutting across a wide range of materials. Designed for right-hand rotation and featuring a hexagonal shank, this 4-1/8 inch hole saw delivers the cutting performance professionals expect when working with wood, sheet goods, masonry, plastics, and more. The tungsten carbide (HW) tooth construction makes it a reliable choice for contractors, electricians, and tradespeople who need a single hole cutter that transitions easily between demanding materials on the job site.

Key Features

• Tungsten Carbide (HW) Tooth Material - provides exceptional hardness and edge retention, allowing the saw to cut through abrasive materials like bricks, aerated concrete, and laminates without rapid dulling that standard bi-metal saws experience.
• 4-1/8" (105mm) Cutting Diameter - sized for common electrical, plumbing, and HVAC rough-in applications where a precise, consistent hole diameter is critical for a proper fit.
• 60mm Cutting Depth - reaches through thick substrates including double-layer plasterboard assemblies, dimensional lumber, and layered sheet materials in a single pass.
• 5-Tooth TCT Configuration - the 5-tooth geometry balances aggressive cutting speed with a smooth cut finish, reducing material tear-out on wood products, laminates, and MDF.
• Hexagonal Shank Design - the hexagonal shank interface resists slipping under load and provides a secure, positive connection to the arbor, improving both safety and cutting accuracy.
• Right-Hand (RH) Rotation - compatible with standard right-hand-rotation drills, drill presses, and cordless tools used throughout the trade and construction industries.
• Multi-Purpose Material Compatibility - one saw handles wood, plywood, MDF, laminates, plasterboard, plastics, bricks, aerated concrete, and soft tiles, reducing the need to carry and swap between multiple specialized cutters.

Why This Product

• Professionals who work across multiple material types benefit from a single TCT hole saw that cuts wood-based sheet goods, masonry, and plastics without tool changes - the 550-105X multi-purpose design addresses exactly that need.
• The 60mm cutting depth makes this 105mm hole saw practical for thicker wall assemblies and stacked materials where shallow-depth hole saws would require a second pass or a completely different tool.
• The tungsten carbide tooth material withstands the abrasive conditions of cutting bricks and aerated concrete that would quickly degrade bi-metal alternatives, making this a cost-effective long-term tool for mixed-material job sites.
• The 5-tooth TCT layout provides a controlled, repeatable cut in wood products and laminates where surface quality matters - reducing rework and material waste on finish carpentry and panel installations.

Specifications

• Manufacturer Part Number: 550-105X
• Brand: CMT Orange Tools
• Diameter: 4-1/8" (105mm)
• Cutting Depth: 60mm
• Number of Teeth: 5
• Tooth Material: HW (Tungsten Carbide)
• Shank: Hexagonal
• Rotation: RH (Right-Hand)

Approved Applications

• Hole cutting in wood and plywood
• Hole cutting in MDF and laminates
• Hole cutting in plasterboard
• Hole cutting in plastics
• Hole cutting in bricks and aerated concrete
• Hole cutting in soft tiles