For best results

The radius creates a smooth edge to prevent that edge from chipping with wear

The blade fits perfectly into Edco 42-inch power trowel machines

This case is designed to fit only 1-3/4" diameter handles

Made with precise specifications

Turbo Marmo Groover Set with Case Leister Knife For best resultsTurbo Marmo Groover Set for grooving Linoleum, Marmoleum, Marmorette in two passes. These groovers groove down to the jute backing as required by the flooring manufacturers. Turbo Marmo Groover Set comes with a set of blades for each groover and carrying case. Turbo #18 Marmo Groover Replacement Wheel Kit available. Turbo Marmo Groover Set Features: Grooves Circles and Curves Grooves to the wall No need for Pre heating No Clogging No Jamming No Noise