POWER TROWEL BLADES 36 COMBINATION – SET OF 4. Bon Tool 17-156 POWER TROWEL BLADES 36 COMBINATION – SET OF 4. If you receive an item and it doesn’t work properly or you don’t like it because of any reason at all. Please wait for the result of cancellation. The order will be processed and completed by automatic warehouse system within 5 minutes. Sending direct message to cancel the order is not allowed for every case. For the return case.