05Z020 - Walter 05Z020 Pilot Pin for 1-1/2 Inch Depth Annular Cutters (>3/4 Inch Dia)

Precision Centering and Ejection for Magnetic Drilling

The Walter 05Z020 Center Pin is a critical accessory designed to maximize the performance and lifespan of your annular cutters. Engineered by Walter Surface Technologies, this pilot pin is meticulously hardened and precision-ground to exacting tolerances. It is specifically sized for use with annular cutters that have a 1-1/2" cutting depth and a diameter larger than 3/4". In the demanding environment of industrial metalworking, the reliability of your consumables directly impacts productivity, and this pin is built to withstand the rigors of repetitive drilling without bending or losing its edge.

The primary function of the 05Z020 is threefold: centering, coolant control, and slug ejection. Before the cut begins, the sharp tip of the pin allows the operator to precisely locate the center of the hole on the workpiece. As the feed handle is engaged, the pin retracts into the arbor, opening the internal valve that allows coolant to flow down to the cutter teeth exactly when it is needed. This automated lubrication is vital for maintaining cutter life and hole finish. Finally, upon completion of the cut, the spring-loaded pin forcefully ejects the solid metal slug, clearing the cutter for the next operation immediately. Without a functioning pilot pin, operators face safety risks and significant delays trying to manually remove hot, sharp slugs.

Compatibility is key with magnetic drill tooling. This specific pin is tailored for larger diameter cutters (over 3/4 inch) within the 1-1/2 inch depth range, making it an essential spare part for fabricators using Walter's SST Core Cut, ICECUT, or Carbide series cutters. Its robust construction ensures it resists the lateral forces and thermal cycles inherent in heavy structural steel drilling, providing consistent performance shift after shift.