Currently, the README.md states:

Each diamond powers the Pulverizer for 512 uses (the same amount as a Diamond Pickaxe has durability).

A diamond pickaxe actually has 1561 ≈ 3 * 512 durability, so that line should instead state the following (or something similar):

Each diamond powers the Pulverizer for 512 uses (about one third of the durability of a Diamond Pickaxe).