Product Description
The CMT 550-070X Multi-Purpose TCT Hole Saw is a 2-3/4" (70mm) carbide-tipped hole saw engineered for demanding multi-material cutting tasks. Built with tungsten carbide (HW) teeth and a right-hand rotation design, this 70mm hole saw delivers clean, accurate bores through a wide range of materials - making it a go-to choice for contractors, electricians, and woodworkers who need one tool that handles wood, sheet goods, and building materials alike. The hexagonal shank provides a secure, slip-resistant connection to compatible drill chucks, keeping the tool stable through tough cuts.
Key Features
- 70mm (2-3/4") cutting diameter with 60mm cutting depth - provides substantial reach through thick materials, reducing the need for multiple passes or repositioning on deep workpieces.
- Tungsten carbide (HW) tipped teeth - carbide construction delivers exceptional edge retention and durability across a broad range of materials, far outlasting standard bi-metal hole saws in abrasive applications.
- 3-tooth TCT configuration - the lower tooth count combined with carbide tips optimizes chip clearance and cutting speed through demanding materials, reducing heat buildup and clogging.
- Right-hand (RH) rotation - matches the standard operating direction of corded drills, cordless drills, and drill presses, ensuring immediate compatibility without setup adjustments.
- Hexagonal shank - the hex shank design prevents slipping inside the drill chuck and ensures positive torque transfer, especially during high-resistance cuts through hard or layered materials.
- Multi-purpose design - a single hole saw handles wood, plywood, MDF, laminates, plasterboard, plastics, bricks, aerated concrete, and soft tiles, reducing the need to swap between specialized tools.
Why This Product
- Versatility across materials - instead of stocking separate hole saws for wood, masonry, and plastics, this TCT hole saw covers all of those materials in a single 70mm tool, saving time and tool budget on mixed-material projects.
- Carbide durability where bi-metal falls short - HW (tungsten carbide) teeth maintain their cutting edge through abrasive materials like bricks and aerated concrete that would rapidly dull standard steel hole saws.
- 60mm cutting depth for real-world applications - the 60mm depth capacity accommodates common wall thicknesses, door faces, and framing situations where shallower hole saws would come up short.
- Compatible with standard drill equipment - the right-hand rotation and hexagonal shank mean this hole saw works with the corded and cordless drills and drill presses already in most shops and job sites, without requiring specialty tooling.
Specifications
- Manufacturer Part Number: 550-070X
- Brand: CMT Orange Tools
- Diameter: 2-3/4" (70mm)
- Cutting Depth: 60mm
- Number of Teeth: 3
- Blade Material: HW (Tungsten Carbide)
- Rotation: RH (Right-Hand)
- Shank: Hexagonal
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
Frequently Asked Questions
What materials can the CMT 550-070X cut?
This multi-purpose TCT hole saw is designed to cut wood, plywood, MDF, laminates, plasterboard, plastics, bricks, aerated concrete, and soft tiles. The tungsten carbide (HW) tooth construction makes it suitable for both soft and abrasive materials in a single tool.
What is the cutting depth of this 70mm hole saw?
The CMT 550-070X has a cutting depth of 60mm, providing enough reach for most standard wall panel, framing, and door-face applications without requiring a pilot extension.
What type of shank does this hole saw use, and what drills is it compatible with?
The 550-070X features a hexagonal shank, which seats securely in the chuck of corded drills, cordless drills, and drill presses. The hex shank prevents rotation and slipping during high-torque cuts. The tool uses right-hand (RH) rotation, matching standard drill operation.
How many teeth does the CMT 550-070X have, and why does that matter?
This hole saw has 3 carbide-tipped teeth. A 3-tooth configuration paired with TCT (Tungsten Carbide Tipped) cutting edges promotes efficient chip evacuation and reduces heat accumulation during cutting, which is especially important when boring through dense or abrasive materials like bricks or aerated concrete.
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