Benchmark Abrasives 3-1/2" x 10 TPI bi-metal air saw blades are built for pneumatic reciprocating saw applications that benefit from a coarse tooth pitch and aggressive cutting action. At 10 teeth per inch, this is the coarsest option in our 3-1/2" air saw blade lineup, with wider tooth spacing than the 14, 18, 24, and 32 TPI options.
The bi-metal construction provides the durability and flexibility needed for demanding reciprocating cuts in metal and other materials, while the compact scroll-style profile supports controlled cutting in automotive, fabrication, maintenance, and repair applications. Supplied in a 5-pack, these blades give shops a practical coarse-pitch cutting option for compatible pneumatic air saws.
Product Specifications
Specification
Details
Blade Length
3-1/2"
Teeth Per Inch
10 TPI
Construction
Bi-Metal
Blade Profile
Scroll
Tool Type
Pneumatic Air Saw
Pack Quantity
5 Blades
Features
Coarse 10 TPI tooth pitch provides the widest tooth spacing in the Benchmark Abrasives 3-1/2" air saw blade 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 tight or detailed work areas.
Metal-cutting capability makes the blade useful for fabrication, automotive, exhaust, and maintenance work when the material and thickness suit the coarse pitch.
Five-blade pack keeps replacement blades available for shop and field use.
Available alongside 14, 18, 24, and 32 TPI blades for matching tooth pitch to the material and application.
Applications
The 10 TPI blade is the coarsest option in the Benchmark Abrasives air saw blade range and is suited to applications that benefit from wider tooth spacing and aggressive tooth engagement.
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 thinner materials or applications requiring a finer cut, a higher-TPI blade may provide better tooth engagement and control.
Materials
Bi-metal air saw blades are commonly used for cutting metal as well as non-metal materials, with the correct TPI selected for the material thickness and application.
Suitable materials can include:
Mild steel
Sheet metal and fabricated metal sections
Automotive body panels
Fabricated metal sections
Exhaust and similar metal components
Aluminum and other non-ferrous metals
Wood
Nail-embedded wood
Fiberglass
Plastic
The 10 TPI configuration is the coarsest pitch in the Benchmark Abrasives air saw blade range, making it better suited to applications where wider tooth spacing is appropriate. As material becomes thinner, a finer tooth pitch is generally preferred to keep more teeth engaged in the cut.
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 10 TPI blade offers the most open tooth spacing in this range for coarse cutting work.
Match the pitch to the thickness being cut. For tubing, use wall thickness as your starting point when choosing TPI, and check overall blade reach separately.
Safety Tips
Disconnect the air supply before installing, removing, or changing the saw blade.
Follow the air saw manufacturer's instructions for blade installation and retention.
Make sure the blade is fully seated and securely retained before operating the saw.
Benchmark Abrasives 3-1/2" x 10 TPI bi-metal air saw blades are built for pneumatic reciprocating saw applications that benefit from a coarse tooth pitch and aggressive cutting action. At 10 teeth per inch, this is the coarsest option in our 3-1/2" air saw blade lineup, with wider tooth spacing than the 14, 18, 24, and 32 TPI options.
The bi-metal construction provides the durability and flexibility needed for demanding reciprocating cuts in metal and other materials, while the compact scroll-style profile supports controlled cutting in automotive, fabrication, maintenance, and repair applications. Supplied in a 5-pack, these blades give shops a practical coarse-pitch cutting option for compatible pneumatic air saws.
Product Specifications
Specification
Details
Blade Length
3-1/2"
Teeth Per Inch
10 TPI
Construction
Bi-Metal
Blade Profile
Scroll
Tool Type
Pneumatic Air Saw
Pack Quantity
5 Blades
Features
Coarse 10 TPI tooth pitch provides the widest tooth spacing in the Benchmark Abrasives 3-1/2" air saw blade 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 tight or detailed work areas.
Metal-cutting capability makes the blade useful for fabrication, automotive, exhaust, and maintenance work when the material and thickness suit the coarse pitch.
Five-blade pack keeps replacement blades available for shop and field use.
Available alongside 14, 18, 24, and 32 TPI blades for matching tooth pitch to the material and application.
Applications
The 10 TPI blade is the coarsest option in the Benchmark Abrasives air saw blade range and is suited to applications that benefit from wider tooth spacing and aggressive tooth engagement.
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 thinner materials or applications requiring a finer cut, a higher-TPI blade may provide better tooth engagement and control.
Materials
Bi-metal air saw blades are commonly used for cutting metal as well as non-metal materials, with the correct TPI selected for the material thickness and application.
Suitable materials can include:
Mild steel
Sheet metal and fabricated metal sections
Automotive body panels
Fabricated metal sections
Exhaust and similar metal components
Aluminum and other non-ferrous metals
Wood
Nail-embedded wood
Fiberglass
Plastic
The 10 TPI configuration is the coarsest pitch in the Benchmark Abrasives air saw blade range, making it better suited to applications where wider tooth spacing is appropriate. As material becomes thinner, a finer tooth pitch is generally preferred to keep more teeth engaged in the cut.
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 10 TPI blade offers the most open tooth spacing in this range for coarse cutting work.
Match the pitch to the thickness being cut. For tubing, use wall thickness as your starting point when choosing TPI, and check overall blade reach separately.
Safety Tips
Disconnect the air supply before installing, removing, or changing the saw blade.
Follow the air saw manufacturer's instructions for blade installation and retention.
Make sure the blade is fully seated and securely retained before operating the saw.
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.
Frequently Asked Questions
TPI means teeth per inch. This blade has 10 teeth per inch, making it the coarsest tooth pitch in the Benchmark Abrasives 3-1/2" air saw blade range.
The range includes 10, 14, 18, 24, and 32 TPI. The 10 TPI blade has the widest tooth spacing and provides the coarsest cutting action, while progressively higher TPI options provide finer tooth spacing.
Choose 10 TPI when you need the widest tooth spacing in this range for coarse cutting. For thin metal, step up to a finer pitch to keep more teeth engaged.
Yes. The bi-metal construction is suitable for metal cutting when the material thickness suits the coarse 10 TPI pitch. For thin sheet metal and automotive body panels, consider 24 or 32 TPI.
Suitable applications can also include wood, nail-embedded wood, fiberglass, plastic when the material thickness and saw capacity suit the job.
The blade uses bi-metal construction, providing a combination of cutting durability and flexibility for reciprocating saw applications.
The nominal blade length is 3-1/2". Actual usable cutting reach depends on the saw’s mounting position, guide, and stroke.
Each pack contains five blades.
These blades are designed for compatible pneumatic reciprocating air saws and body saws. Compatible examples include selected Ingersoll Rand®, Astro Pneumatic®, and AIRCAT® air saws. Confirm the mounting configuration and blade-length requirements of your specific tool before installation.
A finer pitch is generally preferred as metal becomes thinner because it keeps more teeth engaged in the cut. The 24 or 32 TPI options may be better suited when a finer tooth pitch is required.
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