This is a 4½" 40 Tooth Per Inch Saw Blade from X-Acto. FEATURES: For medium depth cuts Use on wood, railroad tracks, tubing, plastic, rubber and foam Fits Type C and D handles Carded packaging INCLUDES: One 4½" 40 Tooth Per Inch Saw Blade REQUIRES: X-Acto Type C or D Handle SPECS: Length: 4½" Width: 1" deep cuts Teeth per Inch: 40 Material Thickness: .010" sdw 11/2/01 ir/kh