Carbide Tipped 16-1/4″ Thin Knife Set (1-1/4″ × 5/32″)

Description

The TN637CT is a 16-1/4″ × 1-1/4″ × 5/32″ carbide-tipped HSS thin knife set for jointers and planers with 16-1/4-inch cutting width. Thin knife sets are precision-ground to the exact machine knife length, matching the cutterhead slot dimension of specific machine models with 16-1/4-inch capacity. The 1-1/4 knife width (height) and 5/32 thickness are the head slot specifications — confirm both dimensions match the installed cutterhead before ordering. Sold as a set of matched knives for the full head complement required by the machine. Carbide-tipped construction extends edge life in abrasive manufactured boards, hardwood, and high-volume softwood production where standard HSS edge intervals are too short — carbide tips require diamond grinding equipment for resharpening. After installation, set knives to the correct height above the cutterhead using a setting jig or dial indicator for consistent, flat surface results. Thin knife geometry suits jointer and thicknesser heads designed for this knife section; do not substitute for corrugated-back or smooth-back bar-length stock without confirming head compatibility.