Starrett 21221 Welded Bandsaw Blade 3-4 Tpi Bi-metal

Product Description

The STARRETT 21221 is a welded bi-metal bandsaw blade designed for continuous cutting of ferrous and non-ferrous metals in industrial and shop environments. At 12 feet 6 inches long, 1 inch wide, and 0.035 inches thick, it fits standard vertical and horizontal band saws used in metal fabrication shops, maintenance facilities, and production cutting operations. The blade features high speed steel teeth with a raker set and a variable pitch of 3 to 4 TPI, which helps reduce vibration and harmonics during the cut. Licensed HVAC shops, metalworking facilities, and general trade shops running metal-cutting band saws rely on this blade for reliable, consistent performance across a range of stock profiles.

The 21221 is suited for cutting ferrous metals such as structural steel, angle iron, and pipe, as well as non-ferrous metals including aluminum, brass, and copper tubing. The variable pitch tooth pattern minimizes blade chatter and extends blade life when cutting varying cross-sections or bundled stock. It is part of the Starrett Intenss PRO series, which is targeted at production and heavy-use shop applications where blade longevity and cut quality are priorities. This blade ships as a single welded loop ready to install on compatible machines.

Key Features

• Bi-metal construction with high speed steel teeth bonded to a flexible back for durability and break resistance
• Variable pitch 3 to 4 TPI reduces vibration and harmonics for smoother cuts
• Raker tooth set provides consistent chip clearance in solid and structural stock
• Straight tooth form with positive rake angle improves cutting efficiency in metal
• Flexible back type allows the blade to flex around band saw wheels without fatigue cracking
• Suitable for both ferrous and non-ferrous metal applications

Compatibility

Designed for use on band saws accepting a 12-foot 6-inch loop blade that is 1 inch wide. Verify your machine's blade length, width, and wheel spacing specifications before ordering. No specific machine model compatibility was provided in the product data.

Installation Notes

Band saw blade installation should be performed by a qualified technician familiar with the machine manufacturer's procedures. Always disconnect and lock out power to the saw before removing the old blade or installing a new one. Wear cut-resistant gloves when handling the blade loop, as the teeth present a laceration hazard. After installation, verify blade tension and tracking according to the saw manufacturer's specifications before resuming operation.