CMT JT123X-5 Jig Saw Blades - Metal/Fine Straight (HSS) 4" x 10-21 TPI, 5-Piece Pack are progressive-pitch high-speed steel jig saw blades engineered for precise, fine straight cuts through a wide range of metals and materials. With a variable tooth spacing of 1.2-2.6mm and a tooth range of 10-21 TPI, each 4-inch blade handles everything from thin sheet metal to thick plate, aluminum pipe, plastic profiles, and stainless steel - all in a single blade. This 5-piece pack is a practical choice for metalworkers and fabricators who need reliable performance across multiple material thicknesses without swapping blades.

Key Features

• High-Speed Steel (HSS) Construction - HSS material delivers the hardness and heat resistance needed to cut through sheet metal, stainless steel, aluminum, and plastic profiles without dulling prematurely, extending blade life through demanding metalworking tasks.
• Progressive 10-21 TPI Tooth Pitch (1.2-2.6mm tooth distance) - the variable pitch transitions from 21 TPI at the fine end to 10 TPI at the coarse end, allowing one blade to handle thin sheet metal as fine as 1/16 inch and thick plate up to 3/8 inch, reducing the need for multiple blade changes on the job.
• T-Shank (Universal T-Shank) - the T-shank interface fits all major jig saw brands and cordless jig saw models, making these blades a drop-in replacement with no adapter required.
• 4-Inch Total Length with 3-Inch Cutting Height - the 3-inch cutting depth provides working clearance for pipes, profiles, and sheet goods while keeping the blade stable during straight-line cuts.
• Fine Straight Cut Geometry - blade geometry optimized for straight cuts in metal means cleaner edges on sheet metal, aluminum tubing, and plastic profiles, reducing finishing time after cutting.
• 5-Piece Pack Quantity - stocking five identical blades means replacements are on hand when blades wear, keeping fabrication and metalworking projects moving without downtime.

Why This Product

• One blade handles thin to thick sheet metals from 1/16 inch to 3/8 inch thick - the progressive 10-21 TPI pitch eliminates the need to stock separate fine-tooth and coarse-tooth metal blades for different material thicknesses.
• Capable of cutting stainless steel from 1/16 inch to 1/8 inch thick as well as aluminum and plastic pipes and profiles with diameter under 1-1/4 inch - a versatile option for fabrication shops and contractors working with mixed materials.
• T-shank design ensures compatibility with all major jig saw platforms, so these HSS blades integrate into existing cordless or corded jig saw setups without additional hardware or adapters.
• Buying in a 5-piece pack provides cost-effective backup supply - when cutting abrasive materials like stainless steel and thick sheet metal, having fresh blades ready prevents project delays.

Specifications

• Manufacturer Part Number: JT123X-5
• Brand: CMT Orange Tools
• Total Length: 4"
• Cutting Height: 3"
• Shank Type: T-Shank
• Maximum Material Thickness: 1/16" to 3/8"
• Number of Teeth: 10-21 TPI
• Tooth Distance: 1.2-2.6mm
• Blade Material: HSS (High-Speed Steel)
• Quantity: 5-Piece

Approved Applications

• Fine straight cuts in sheet metal from 1/16" to 3/8" thick (thin to thick)
• Straight cuts in stainless steel from 1/16" to 1/8" thick
• Cuts in aluminum pipes and profiles with diameter under 1-1/4"
• Straight cuts in plastic pipes and profiles with diameter under 1-1/4"
• Compatible machines: jig saws and cordless jig saws