Variable Temperature Hot Air Gun Kit 2000W 50-450?C / 90-600?C Brake Service Tools These are square section tappet

These are square section tappet adjusting tools

But how do you tell

The tool is suitable for pistons from 40mm diameter to 85mm

Bikes include: F4 750 / 1000 / 1000R / 312R / Senna

Variable Temperature Hot Air Gun Kit 2000W 50-450?C / 90-600?C Brake Service Tools These are square section tappetTwo step airflow control switch, with variable temperature range on both levels. Gun is designed to stand vertically, allowing use as a safe Bunsen burner alternative. As well as being used for shrinking heatshrink sleeve and heating up bike parts to help free stuck fasteners is suitable for paint stripping, soft soldering, removing sticky labels and defrosting frozen pipes. Fitted 3 pin plug. Supplied with four nozzles and scraper, all in a storage