Product Description
The CMT 550-076X Multi-Purpose TCT Hole Saw delivers a 3" (76mm) cutting diameter paired with a 60mm cutting depth, making it a versatile tool for professionals and serious tradespeople tackling a wide range of materials in a single pass. Built with tungsten carbide-tipped (TCT) teeth and a right-hand rotation design, this hole saw is engineered for efficient, clean cuts through demanding substrates - from structural wood and composite panels to masonry and plastics. The hexagonal shank interface provides a secure connection that reduces slippage and keeps the saw firmly engaged during operation.
Key Features
- 3" (76mm) Cutting Diameter - sized for common trade applications including pipe penetrations, cable routing, and fixture installations, eliminating the need for multiple specialized saws.
- 60mm Cutting Depth - reaches through thick substrates including double-layer boards and deep stud walls, reducing the need for back-cutting or repositioning.
- Tungsten Carbide-Tipped (TCT) Teeth (HW Material Grade) - carbide provides exceptional hardness and heat resistance, maintaining a sharp cutting edge far longer than bi-metal alternatives when working in abrasive or tough materials.
- 4-Tooth Configuration - an aggressive, open tooth geometry moves material quickly and clears chips efficiently, reducing heat buildup and clogging during extended cuts.
- Hexagonal Shank Design - the hex shank seats securely in compatible arbors and drill chucks, preventing rotation slippage and delivering consistent torque transfer through the cut.
- Right-Hand Rotation (RH) - matches standard drill rotation for plug-and-play compatibility with cordless drills, corded drills, and drill presses without setup adjustments.
Why This Product
- A true multi-purpose hole saw - the carbide-tipped construction handles wood, MDF, laminates, plasterboard, plastics, bricks, aerated concrete, and soft tiles without switching tools, saving time on mixed-material job sites.
- The 60mm cutting depth gives tradespeople the reach needed to penetrate structural members and thick wall assemblies cleanly, which standard shallow-depth hole saws cannot achieve in a single pass.
- With only 4 carbide teeth, the saw cuts aggressively with lower feed resistance - useful when working with cordless drills where battery power and torque are at a premium.
- The hexagonal shank eliminates the round-shank slippage that wastes effort and damages arbors, giving users a more reliable drive connection from start to finish of every hole.
Specifications
- Manufacturer Part Number: 550-076X
- Brand: CMT Orange Tools
- Diameter: 3" (76mm)
- Cutting Depth: 60mm
- Number of Teeth: 4
- Tooth Material: HW (Tungsten Carbide)
- Shank: Hexagonal
- Rotation: Right-Hand (RH)
Approved Applications
- Hole cutting in wood and plywood
- Hole cutting in MDF and laminates
- Hole cutting in plasterboard and drywall panels
- Hole cutting in plastics
- Hole cutting in bricks and aerated concrete
- Hole cutting in soft tiles
Frequently Asked Questions
What is the cutting depth of this hole saw?
The CMT 550-076X has a cutting depth of 60mm, which allows it to penetrate through thick structural members, double-layer boards, and deep wall assemblies in a single pass without back-cutting.
What type of shank does this hole saw use, and will it fit my drill?
This hole saw uses a hexagonal shank, which fits compatible hex-accepting arbors and drill chucks. The hex geometry locks securely into place to prevent rotation slippage during operation, and the right-hand rotation matches standard drill direction for straightforward use with cordless drills, corded drills, and drill presses.
What does TCT mean and why does it matter for multi-material cutting?
TCT stands for Tungsten Carbide-Tipped. The teeth on this saw are tipped with HW-grade tungsten carbide, which is significantly harder and more heat-resistant than high-speed steel or bi-metal alternatives. This makes the 550-076X suitable for a wide range of materials - including abrasive substrates like bricks, aerated concrete, and soft tiles - while retaining a sharp cutting edge over extended use.
How many teeth does this hole saw have, and how does that affect performance?
The CMT 550-076X features 4 carbide-tipped teeth. This lower tooth count creates an open, aggressive cutting geometry that moves material quickly, clears chips efficiently, and reduces heat accumulation - particularly beneficial when cutting with cordless drills where motor load and battery draw are important considerations.
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