Choose from 52, 42 or 32 Teeth Per Inch. Ultra Thin Kerf Razor Saw has a blade that is .008″ thick, with a tooth set range of .009/.011″ (Zona’s thinnest available), 4-1/2″ long, with a 7/16″ cutting depth, and steel back for stability. Makes super fine pull stroke cuts in wood, soft metals and plastic without splits or ragged edges.