Leonardi M1 Wear Blocks are designed to take side impacts and protect your M1 stump grinder wheel from excessive wear. The logo is stamped to just the right depth to let you know when it is time to replace. The outline of the logo on the Wear Block IS the indicator of wear.
When the top of the outline begins to wear through, it's time to replace the Wear Block.
M1 Wear Blocks replacement set (sold as a pair - 2) mounting hardware included.
All pictures shown are for illustration purpose only. Actual product may vary.