4" x .035" x 24T Bi-Metal Reciprocating Blade - 10 Pack

4" X .035" 24 TPI BI-METAL RECIPROCATING SAW BLADES - 10 PACK

The Benchmark Abrasives 4" x .035" x 24T bi-metal reciprocating blade is a professional-grade fine-pitch blade designed for clean, controlled cuts in thin-gauge metal and conduit. Its heavy-duty bi-metal construction combines a flexible, heat-treated spring-steel alloy backing with cobalt high-speed steel cutting teeth, helping the blade absorb vibration and shock while maintaining a durable cutting edge.

The cobalt teeth are electron welded to the flexible backing for a strong, long-lasting bond, while computer-designed tooth geometry supports accurate tooth setting and consistent cutting performance. A white painted finish adds resistance to wear, abrasion, and corrosion. At 24 TPI, this blade is optimized for clean, fast cuts in thin-gauge metals up to approximately 1/8" thick, as well as metal and plastic conduit.

Product Specifications

Features

• Professional-grade, heavy-duty bi-metal construction for demanding cutting applications.
• Flexible spring-steel alloy backing helps absorb vibration and resist shock and breakage.
• Electron-welded cobalt high-speed steel teeth provide a durable cutting edge.
• Computer-designed tooth geometry supports accurate tooth setting and consistent performance.
• 24 TPI configuration provides fine tooth engagement for cleaner cuts in thin material.
• White painted surface provides additional resistance to abrasion, wear, and corrosion.
• 1/2" universal tang is designed for standard reciprocating saw blade holders.

Applications

The 24 TPI tooth configuration is designed for fine cutting applications where maintaining multiple teeth in the material helps improve control and cut quality.

Recommended applications include:

• Thin-gauge metal cutting
• Sheet metal
• Metal up to approximately 1/8" thick
• Metal conduit
• Plastic conduit
• General electrical and maintenance work
• Light fabrication and repair

Materials

Suitable materials include:

• Ferrous metals
• Non-ferrous metals
• Metal conduit
• Plastic conduit

For thicker metal sections, a 14 TPI or 18 TPI Benchmark Abrasives reciprocating blade may provide a faster cutting rate while maintaining appropriate tooth engagement.

Machine Compatibility

The 1/2" universal tang shank is designed for standard reciprocating saw blade machines,

Compatible examples include:

• Milwaukee® M18 FUEL™ SAWZALL® 2821-20
• Milwaukee® M12™ HACKZALL® 2420-20
• Bosch® GSA 1100 E
• Astro Pneumatic® ONYX 936 air saw
• Other reciprocating saws with a standard 1/2" universal-shank holder

Choose a blade long enough to clear the shoe and workpiece throughout the full stroke, and stay within your saw's cutting capacity. Compact air saws with a different blade mount require their specified blades.

24 TPI Performance

A 24 TPI blade uses a fine tooth pitch to keep more teeth engaged with thin materials during the cut. This helps improve control and reduce the risk of individual teeth catching on thin sheet or conduit.

Compared with 18 TPI, the 24 TPI configuration is better suited to thinner sections where a finer cut is preferred. For thicker material, a coarser blade may cut faster and provide better chip clearance. For pipe and conduit, choose TPI by wall thickness and blade length by the full outside dimension.

Safety Tips

• Always wear appropriate eye, hearing, and hand protection.
• Unplug the saw, remove the battery, or disconnect the air supply before changing blades.
• Confirm the blade is fully seated and securely locked in the saw's blade holder before operation.
• Select a blade long enough to extend beyond the shoe and workpiece throughout the saw's complete stroke.
• Secure the workpiece before cutting.
• Keep multiple teeth engaged when cutting metal; choose TPI by wall thickness when cutting pipe or conduit.
• Do not bend, twist, or side-load the blade during use.
• Replace blades showing excessive tooth wear, cracks, deformation, or other damage.
• Follow all operating and safety instructions supplied with your reciprocating saw.