Starrett 20689 Bi-metal Bandsaw Blade 10 Ft 3/4 in 4-6 Tpi

Product Description

The STARRETT 20689 is a bi-metal welded bandsaw blade engineered for cutting ferrous and non-ferrous metals in professional shop and industrial environments. The blade runs 10 feet in length and 3/4 inch wide, with a 0.035-inch thickness and a variable pitch of 4 to 6 teeth per inch (TPI). The tooth material is high speed steel, set in a raker pattern with a positive rake angle for aggressive, efficient stock removal. The flexible back design reduces fatigue cracking during continuous use. Licensed HVAC, plumbing, and mechanical contractors as well as metal fabricators will find this blade well suited for structural and tubing cuts on a range of metal workpieces.

This blade is intended for use on horizontal and vertical metal-cutting bandsaws accepting a 10-foot blade loop. The variable pitch tooth pattern reduces harmonic vibration and improves chip evacuation across varying material thicknesses, making it a practical choice for shops cutting both solid bar stock and thin-wall tubing. Material applications include ferrous metals such as mild steel, alloy steel, and structural sections, as well as non-ferrous metals including aluminum, brass, and copper. The Intenss PRO series is designed for demanding production cutting cycles where blade life and cut quality are priorities.

Key Features

• Bi-metal construction with high speed steel teeth bonded to a flexible alloy back for extended blade life
• Variable pitch of 4 to 6 TPI reduces vibration and improves cut finish across varying stock thicknesses
• Raker tooth set with positive rake angle for efficient chip clearance in metal cutting
• Flexible back construction resists fatigue cracking during continuous bandsaw operation
• Straight tooth form suits general-purpose ferrous and non-ferrous metal cutting applications
• Welded loop ready for immediate installation on compatible bandsaw machines

Compatibility

Designed as an OEM-style replacement or direct-fit blade for metal-cutting bandsaws requiring a 10-foot welded loop, 3/4-inch wide, 0.035-inch thick blade. Suitable for machines set up for ferrous and non-ferrous metal cutting applications.

Installation Notes

Blade installation should be performed by a qualified technician with the bandsaw powered down and the machine fully de-energized before handling. Verify wheel diameter, blade guide spacing, and throat capacity match the 10-foot loop length and 3/4-inch width before fitting. Tension the blade according to the bandsaw manufacturer specifications and confirm blade tracking before resuming cuts. Wear cut-resistant gloves when handling coiled or uncoiled bandsaw blades.