3-1/2" x 24T Air Saw Blade - 5 Pack

3-1/2" x 24 TPI BI-METAL AIR SAW BLADE - 5 PACK

Benchmark Abrasives 3-1/2" x 24 TPI bi-metal air saw blades are built for controlled cutting in metalworking, automotive, fabrication, maintenance, and repair applications. The fine 24 TPI tooth pitch provides increased tooth engagement compared with the coarser 10, 14, and 18 TPI blades, making it a strong option for thinner materials and applications where a smoother, more controlled cut is preferred.

Constructed from durable bi-metal, these compact scroll-style blades combine cutting performance with the flexibility required for reciprocating air saw operation. Each pack includes five blades for use with compatible pneumatic air saws and body saws in professional shop, automotive, and fabrication environments.

Product Specifications

Features

• Fine 24 TPI tooth pitch provides greater tooth engagement than the 10, 14, and 18 TPI blades in the range.
• Bi-metal construction combines cutting durability with the flexibility needed for reciprocating saw applications.
• 3-1/2" blade length is designed for compact pneumatic air saw and body saw applications.
• Scroll-style profile supports controlled cutting in confined, curved, and detailed work areas.
• Metal-cutting capability makes the blade well suited to automotive, fabrication, sheet metal, and maintenance work.
• Five-blade pack provides convenient replacement stock for professional and shop use.
• Available alongside 10, 14, 18, and 32 TPI options for matching tooth pitch to the material and application.

Applications

The 24 TPI blade is a finer-pitch option designed for applications that benefit from increased tooth engagement and more controlled cutting action.

Common applications include:

• Automotive repair on suitable material thicknesses
• Exhaust system cutting
• Metal fabrication
• Maintenance and repair
• General shop cutting
• Wood cutting
• Fiberglass cutting
• Plastic cutting
• Pneumatic saw applications requiring a coarse tooth pitch

For thicker sections or applications where more aggressive tooth spacing is preferred, consider a lower-TPI blade.

Materials

Bi-metal air saw blades are commonly used for cutting metal as well as non-metal materials, with the proper tooth pitch selected according to material type, section thickness, and cutting application.

Suitable materials can include:

• Mild steel
• Sheet metal
• Automotive body panels
• Thin-wall steel sections
• Exhaust components
• Aluminum
• Other non-ferrous metals
• Fiberglass
• Plastic
• Wood
• Nail-embedded wood

The 24 TPI configuration provides finer tooth spacing than the 10, 14, and 18 TPI blades, making it particularly useful when the application benefits from more teeth remaining engaged in the material. For very thin sections, the 32 TPI option provides an even finer tooth pitch.

Machine Compatibility

Designed for compatible pneumatic reciprocating air saws and body saws.

Compatible Examples Include:

• Ingersoll Rand® 429 Air Reciprocating Saw
• Ingersoll Rand® 4429 Air Reciprocating Saw
• Ingersoll Rand® 429G EDGE Series Air Saw
• Ingersoll Rand® 529 Reciprocating Saw
• Astro Pneumatic® 936 ONYX Gear Driven Heavy Duty Air Saw
• AIRCAT® 6350 Low Vibration Air Saw
• Astro Pneumatic® 930 Air Body Saber Saw
• Astro Pneumatic® 129TW Air Saw
• Astro Pneumatic® 929 Heavy Duty Industrial Air Saw

Always confirm blade length and mounting configuration with the requirements of your specific saw before installation.

Performance

The 24 TPI blade offers fine tooth spacing for controlled sheet-metal and repair cuts, with a slightly more open pitch than 32 TPI.

In general, thinner materials benefit from finer tooth pitches, while thicker sections can favor coarser pitches. Matching the TPI to the material and section thickness helps improve tooth engagement, cutting control, and blade performance.

Safety Tips

• Disconnect the air supply before installing, removing, or changing the saw blade.
• Follow the air saw manufacturer's instructions for proper blade installation and retention.
• Make sure the blade is fully seated and securely retained before operating the saw.
• Wear appropriate eye and face protection during cutting.
• Secure the workpiece before beginning the cut.
• Keep hands and other body parts clear of the blade and cutting path.
• Do not use a damaged, bent, or improperly mounted blade.
• Confirm the blade and saw are appropriate for the material being cut.
• Operate the saw only within the manufacturer's stated limits.