CMT JS3456XF-5 Reciprocating Saw Blades for Wood and Metal are 8-inch bi-metal (BIM) blades engineered for demanding demolition and general-purpose cutting through wood with embedded nails, sheet metal, aluminum profiles, and fiberglass. Featuring a progressive 6-12 TPI tooth pattern, these blades balance aggressive material removal with versatile cutting control - making them a go-to choice for contractors and tradespeople who work across multiple material types. Sold as a 5-piece pack.

Key Features

• Bi-Metal (BIM) Construction - high-speed steel teeth bonded to a flexible spring-steel back deliver both wear resistance and blade flexibility, reducing breakage during demanding demolition work.
• Progressive 6-12 TPI Tooth Pattern - the variable tooth pitch transitions from coarser to finer across the blade, allowing a single blade to tackle both thick wood framing and thinner metal materials without swapping blades.
• 8-Inch Total Length with a 7-Inch Cutting Length - the extended reach provides up to 7 inches of usable cutting stroke, giving clearance for deeper cuts in structural demolition and thick stock removal.
• 0.049-Inch Blade Thickness - a precision-controlled tooth thickness maintains kerf consistency and reduces blade deflection during lateral stress, which is critical when cutting through mixed materials like wood with nails.
• Universal Shank Compatibility - fits all major reciprocating saw brands without adapters, allowing crews to drop these blades into existing tools immediately with no downtime.
• Maximum Material Thickness Under 6 Inches - rated for cutting stock up to just under 6 inches thick, covering a wide range of structural lumber and metal profile dimensions commonly encountered on demolition jobsites.
• 5-Piece Pack Quantity - having five blades on hand ensures continuous cutting through a full workday without stopping to source replacements mid-job.

Why This Product

• The progressive 6-12 TPI design eliminates the need to carry separate wood and metal blades - one blade type handles nail-embedded lumber, aluminum profiles, and fiberglass up to just under 6 inches thick, reducing tool bag clutter and blade changeover time.
• Bi-metal construction means these blades resist the sudden shock and heat generated when a wood blade contacts an embedded nail or fastener - a common cause of premature blade failure in demolition scenarios.
• A 7-inch cutting length on an 8-inch blade gives ample working reach for cutting through thick framing members, wall assemblies, or stacked materials where shorter blades would fall short of completing the cut in a single pass.
• Universal shank compatibility makes this 5-piece pack a practical stock-up choice for professionals who use multiple reciprocating saw brands on the same crew or across different jobsites.

Specifications

• Manufacturer Part Number: JS3456XF-5
• Brand: CMT Orange Tools
• Blade Material: BIM (Bi-Metal)
• Total Length: 8"
• Cutting Height: 7"
• Cutting Depth: 19mm
• Teeth Thickness: 0.049"
• Number of Teeth: 6-12 TPI
• Maximum Material Thickness: < 6"
• Quantity: 5-Piece

Approved Applications

• Wood with Nails and Metal (up to just under 6 inches thick)
• Sheet Metal (1/8 to 23/32 inch thick)
• Aluminum Profiles
• Fiberglass and Epoxy (up to just under 6 inches thick)
• Coarse Straight Cuts
• Demolition Cutting