RoboGuide CSDN Roboguide CAD to path segment editing Fanuc Robot Forum Robotforum ROBOGUIDE CAD to Path Setup Pt.1 Tech Transfer Draper Estwing Indestructible Shaft Sledge Hammer, 4.5Kg 10Lb RoboGuide CSDN ROBOGUIDE FANUC America. The Indestructible series of sledgehammers from Estwing incorporate a shaft made of spring steel bars and a steel locking plate to secure the head to the shaft. Designed to resist overstrike without breaking, these sledgehammers ensure maximum user safety and are ideal for tough environments. The drop forged head is induction hardened. The vulcanised rubber handle absorbs impact and vibration to reduce user fatigue. There is a steel reinforced lanyard hole for safe and secure tethering. They are suitable for demolition work, breaking stone and concrete, bending and shaping metals, driving in fence posts and rebar, heavy duty sitework and industrial construction projects.