Product Description
The CMT 551-060X Bi-Metal Plus Hole Saw is a 2-3/8 in. (60mm) bi-metal hole saw engineered for demanding metal cutting applications. Built with 8% Cobalt bi-metal (BIM) construction, this hole saw delivers twice the cutting life of standard hole saws, making it a reliable choice for contractors and fabricators who regularly cut through stainless steel, steel, cast iron, aluminum, copper, brass, and plastics. The XTREME FAST Push and Lock system allows blade changes in under 3 seconds without any tools, keeping your workflow moving on the job site or in the shop.
Key Features
- 8% Cobalt Bi-Metal (BIM) Construction - provides 2x longer cutting life compared to standard hole saws, reducing replacement frequency and cost over time, especially when working with hardened steel and stainless steel.
- XTREME FAST Push and Lock System - allows tool-free blade changes in under 3 seconds, dramatically reducing downtime between cuts and improving productivity on multi-hole projects.
- Variable 4-6 TPI Alternate and Side-Set Teeth - the variable tooth pitch reduces vibration and chatter, producing cleaner cuts across a wide range of materials including metals and plastics.
- 45mm Cutting Depth - provides sufficient depth capacity for cutting through thick-walled materials, structural panels, and layered substrates in a single pass.
- Right-Hand (RH) Rotation - compatible with standard cordless drills, corded drills, and drill presses, making it a versatile addition to any tool kit.
- Hexagonal Shank - locks securely into the arbor to prevent slipping under heavy load, ensuring accurate, centered cuts every time.
- Compatible with 550-PH85 and 550-PH11 Push and Lock Arbors - integrates directly into CMT's 11/32 in. hex and 7/16 in. hex arbor system, so you can swap between hole saw sizes on a single arbor without interruption.
- Made in Italy - precision-manufactured to strict quality standards, ensuring consistent tooth geometry and reliable performance cut after cut.
Why This Product
- If you regularly cut stainless steel or hardened steel, the 8% Cobalt bi-metal formula extends tool life to twice that of conventional hole saws - meaning fewer replacements and lower long-term cost per hole.
- The XTREME FAST Push and Lock system is purpose-built for professionals who need to switch hole saw sizes quickly - no wrenches, no fumbling, just a push to change in under 3 seconds.
- At 2-3/8 in. (60mm) diameter with a 45mm cutting depth, this hole saw handles a practical range of hole sizes and material thicknesses commonly encountered in HVAC, electrical, and metalworking trades.
- Versatility across materials - from stainless steel and cast iron to copper, brass, aluminum, and plastics - means you can use one tool across multiple project types rather than stocking separate cutters for each material.
Specifications
- Manufacturer Part Number: 551-060X
- Brand: CMT Orange Tools
- Diameter: 2-3/8 in. (60mm)
- Cutting Depth: 45mm
- Blade Material: Bi-Metal (BIM) 8% Cobalt
- Tooth Pitch: Variable 4-6 TPI (alternate and side-set)
- Shank: Hexagonal
- Rotation: Right-Hand (RH)
- System: XTREME FAST Push and Lock
- Arbor Compatibility: 550-PH85 (11/32 in. hex) and 550-PH11 (7/16 in. hex) Push and Lock arbors
- Country of Origin: Made in Italy
Approved Applications
- Hole cutting in steel and stainless steel
- Hole cutting in cast iron
- Hole cutting in aluminum and non-ferrous metals
- Hole cutting in copper and brass
- Hole cutting in plastics
- Use with cordless drills, corded drills, and drill presses
Frequently Asked Questions
What arbors are compatible with the CMT 551-060X hole saw?
The 551-060X is compatible with CMT Push and Lock arbors - specifically the 550-PH85 (11/32 in. hex) and the 550-PH11 (7/16 in. hex). Both arbors use the XTREME FAST Push and Lock system for tool-free changes in under 3 seconds.
What materials can this hole saw cut?
The 8% Cobalt bi-metal construction allows the 551-060X to cut stainless steel, steel, cast iron, aluminum, copper, brass, and plastics. The variable 4-6 TPI tooth pitch is designed to handle this range of materials efficiently.
How deep can the CMT 551-060X cut?
This hole saw has a cutting depth of 45mm, making it suitable for cutting through thick-walled metals, structural materials, and layered panels in a single pass.
Why does the 8% Cobalt content matter in a bi-metal hole saw?
The 8% Cobalt (BIM8%CO) formula gives the teeth superior heat resistance and hardness compared to standard bi-metal hole saws. This translates to 2x longer cutting life, which is especially noticeable when cutting hardened steel or stainless steel where heat buildup is a primary cause of premature tooth wear.
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