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Rotary Tool Accessories Dremel 457
Precision ground rotary tool accessories designed for quick, consistent sharpening of chainsaw blades. The Dremel 457 accessory set includes three grinding stones with a 3.2 mm shank and 4.5 mm head diameter, compatible with rotary tools that accept this shank size and with the Dremel chainsaw sharpening attachment No. 1453. With a length of 49 mm and a maximum safe rotational speed of 30,000 RPM, these accessories are intended for accurate material removal and uniform edge shaping.
The Dremel 457 grinding stones are precision-ground for repeatable sharpening results and fit standard 3.2 mm shank collets. Their 4.5 mm diameter and 49 mm length provide good reach and control when used with a rotary tool and the recommended chainsaw sharpening attachment. Supplied in a pack of three, they offer spare parts for multiple sharpening sessions and reduce downtime during maintenance.
Install a Dremel 457 grinding stone into the rotary tool collet designed for a 3.2 mm shank and secure it according to the tool manufacturer's instructions. Attach the Dremel chainsaw sharpening attachment No. 1453 to the rotary tool if sharpening chainsaw blades; align the stone with the cutter tooth and run the tool at an appropriate speed, not exceeding 30,000 RPM. Apply light, steady pressure and make uniform passes along each cutter until the desired edge geometry is achieved. Replace the accessory when worn.
Use appropriate personal protective equipment (eye protection, gloves) and work in a well-ventilated area. Do not exceed the specified maximum speed. Inspect accessories before use and discard if cracked or excessively worn.
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