Product Description
CMT JS1122EF-20 Reciprocating Saw Blades for Metal - BIM 9" x 18TPI (20-Piece Pack) are precision-engineered bi-metal sabre saw blades designed specifically for cutting thin sheet metal, pipes, and profiles with accuracy and durability. Built from BIM (bi-metal) construction with an 18 TPI tooth configuration and a 1.4mm tooth distance, these 9-inch blades deliver clean, controlled cuts through sheet metal ranging from 1.5mm to 4mm thick - giving metal fabricators, contractors, and tradespeople a reliable workhorse blade in a high-value 20-piece set.
Key Features
- Bi-Metal (BIM) Construction - combines the hardness needed to cut metal with the flexibility to resist blade breakage, extending blade life through demanding cutting tasks on sheet metal, pipe, and profiles.
- 18 TPI Tooth Configuration with 1.4mm Tooth Distance - delivers fine, smooth cuts through thin sheet metal and pipe walls, reducing burring and improving cut quality on material from 1.5mm to 4mm thick.
- 9-Inch Total Length with 8-Inch Cutting Length - provides a full 8 inches of usable cutting stroke, giving you reach and clearance when working on pipes and profiles up to 7 inches in maximum thickness.
- 0.035-Inch Blade Thickness - a thin kerf profile reduces cutting resistance and material waste, making these blades efficient for high-volume metal cutting work.
- 20-Piece Pack - stocking a full 20 blades at once means fewer interruptions on the job and consistent blade availability for extended projects involving multiple cuts through metal sheet and pipe.
- Designed for Thin Sheet Metal and Pipe Applications - optimized for cutting metal profiles, hollow sections, and piping, making them purpose-built rather than general-use, so you get better results in their intended application.
Why This Product
- If your work regularly involves cutting thin sheet metal between 1.5mm and 4mm or slicing through metal pipe and profiles, the 18 TPI blade geometry is matched precisely to that material range - fewer skipped teeth, less vibration, and cleaner results compared to coarser blades.
- The BIM material construction means the blade absorbs the flex and stress that would snap a single-material blade, making it a more durable choice when cutting at angles or in tight spaces.
- With a maximum cutting capacity up to 7 inches in thickness and an 8-inch cutting length, these blades handle a wide range of pipe diameters and profile sizes, reducing the need to switch blade sets mid-job.
- Buying in a 20-piece pack delivers cost efficiency and ensures you always have a fresh blade ready - important on production work or contract jobs where downtime from a worn blade adds up quickly.
Specifications
- Manufacturer Part Number: JS1122EF-20
- Brand: CMT Orange Tools
- Blade Material: BIM (Bi-Metal)
- Total Length: 9"
- Cutting Height: 8"
- Cutting Depth: 19mm
- Teeth Per Inch: 18 TPI
- Tooth Distance: 1.4mm
- Teeth Thickness: 0.035"
- Maximum Thickness: Less than 7"
- Compatible Material Thickness: 1.5mm to 4mm (1/16" to 5/32")
- Quantity: 20 Pieces
Approved Applications
- Cutting thin sheet metal (1.5mm to 4mm / 1/16" to 5/32" thick)
- Cutting metal pipes
- Cutting metal profiles and hollow sections
Frequently Asked Questions
What material thickness range are these blades designed to cut?
These blades are specifically designed for cutting thin sheet metal from 1.5mm to 4mm thick (1/16" to 5/32"), as well as metal pipes and profiles. The maximum workpiece thickness capacity is less than 7 inches.
What does BIM mean and why does it matter for cutting metal?
BIM stands for bi-metal construction, which bonds two different metal materials together - a hard cutting edge capable of slicing through metal and a flexible backing that resists breakage during use. This combination gives the blade longer cutting life and greater durability compared to single-material blades, especially when cutting at angles or in confined spaces.
How much usable cutting length do these blades provide?
Each blade has a total length of 9 inches and a cutting height of 8 inches, giving you a full 8-inch usable stroke length for cutting through pipes and profiles.
Is this a good value for contractors who go through blades regularly?
The 20-piece pack format is practical for high-volume use - having 20 blades on hand means you can move through a full day of sheet metal or pipe cutting without stopping to source replacements. The 18 TPI tooth geometry and BIM construction also extend individual blade life compared to lower-grade alternatives, which further reduces the cost per cut over a project.
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