Floor Grinder + Carbide Block- Carbide blocks wear as they are used and must be purchased separately. Purchase a 3-pack for $66+ tax. Floor Grinder is easy to book - 1. Select dates you want and reserve - A chat will open with the owner to ask any questions and discuss options 2. You are not charged until the owner sends you a final invoice and you review it. 3. Easily pay online or on your handheld/phone. 4. The owner will give you instructions for store pick-up or delivery. Note: All transactions come with Stripe's Fraud Protection and Chargeback dispute coverage.