Replacement Blades for "Crocodile" hole cutter 99994006

Constructed to the highest quality and production standards using case-hardened carbon steel, ‘Crocodile blades are reinforced with steel webs to avoid any possible distortion upon impact. Precision ground for accurate and concentric holes, safety is further improved through the use of ‘anti-slip’ steel checker plate on the striking surfaces. ‘The most accurate and safest blades available today’