Product Description
CMT JS1122EF-5 Reciprocating Saw Blades for Metal - BIM 9" x 18TPI (5-Piece) are precision-engineered bi-metal saw blades designed for cutting thin sheet metal, pipes, and profiles with accuracy and long-lasting performance. Built with a 1.4mm tooth spacing and 18 teeth per inch, these 9-inch sabre saw blades deliver clean, controlled cuts through thin sheet metal ranging from 1/16 to 5/32 inch (1.5mm to 4mm) thick, as well as metal pipes and profiles. Each pack includes 5 BIM blades suited for use in reciprocating saws - making them a practical, value-forward choice for metalworking professionals and tradespeople who depend on consistent results.
Key Features
- Bi-Metal (BIM) Construction - high-speed steel teeth bonded to a flexible spring-steel back deliver superior wear resistance, so the blades last longer through repetitive metal cutting without premature tooth failure.
- 18 TPI Tooth Configuration - 18 teeth per inch with a 1.4mm tooth distance produces fine, controlled cuts in thin sheet metal and pipe, reducing burring and the need for post-cut finishing.
- 9-Inch Total Length with 8-Inch Cutting Length - the generous cutting reach allows users to work through thicker workpiece assemblies and flush-cut applications with fewer blade repositions.
- 0.035-Inch Blade Thickness - a slim blade profile reduces cutting resistance and heat buildup, enabling cleaner cuts through metal pipe and sheet stock without binding.
- Rated for Materials Up to 7 Inches Maximum Thickness - suited for pipes and profiles up to 7 inches, giving users flexibility across a range of plumbing, HVAC, and structural metal applications.
- Wavy-Set Tooth Geometry - the alternating tooth set promotes efficient chip clearance during metal cutting, extending blade life and maintaining cut quality through the full stroke.
- 5-Piece Pack - sold in a 5-blade set, so users have backup blades on hand for extended jobs, reducing downtime on demanding metal cutting projects.
Why This Product
- Purpose-built for thin sheet metal from 1.5mm to 4mm (1/16 to 5/32 inch) - these blades are engineered specifically for the material thickness range where tooth count and set geometry matter most, preventing tooth stripping and blade walk that occurs when using a coarser blade on thin stock.
- BIM construction means the blade flex without breaking - the spring-steel back absorbs vibration and deflection during cuts in pipes and profiles, which is especially important when working in tight spaces or overhead.
- 18 TPI is the correct tooth pitch for cutting thin-walled pipe and sheet metal profiles - fewer teeth per inch risk snagging or tearing; this configuration maintains consistent engagement for a smoother, more accurate cut.
- Buying in a 5-piece set provides practical job-site continuity - having multiple blades readily available reduces interruptions when cutting through abrasive or coated metal materials that accelerate wear.
Specifications
- Model Number: JS1122EF-5
- Brand: CMT Orange Tools
- Total Length: 9"
- Cutting Length: 8"
- Cutting Depth: 19mm
- Teeth Thickness: 0.035"
- Number of Teeth: 18 TPI
- Tooth Distance: 1.4mm
- Maximum Material Thickness: Less than 7"
- Blade Material: BIM (Bi-Metal)
- Quantity: 5-Piece
Approved Applications
- Cutting thin sheet metal from 1.5mm to 4mm (1/16 to 5/32 inch)
- Cutting metal pipes
- Cutting metal profiles
What's Included
- 5x CMT JS1122EF BIM Reciprocating Saw Blades - 9" x 18TPI
Frequently Asked Questions
What thickness of sheet metal can these blades cut?
These blades are designed for cutting thin sheet metal from 1.5mm to 4mm thick, which corresponds to approximately 1/16 to 5/32 inch. They are also suited for cutting metal pipes and profiles up to a maximum thickness of less than 7 inches.
What does BIM mean and why does it matter for metal cutting?
BIM stands for Bi-Metal, which refers to a blade construction that combines high-speed steel teeth with a flexible spring-steel back. This combination gives the blade both cutting hardness and the flexibility needed to resist snapping during use in pipes and profiles, resulting in longer blade life compared to single-material blades.
Why is 18 TPI the right tooth count for thin sheet metal?
With a 1.4mm tooth distance and 18 teeth per inch, these blades maintain multiple teeth in contact with the workpiece at all times when cutting thin metal. This prevents the blade from catching or tearing, which is a common problem when using blades with fewer teeth on material in the 1.5mm to 4mm thickness range.
How many blades come in this pack?
This product is sold as a 5-piece set, with each blade measuring 9 inches in total length and 8 inches in cutting length, all with an 18 TPI BIM configuration for metal cutting.
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