NOTE: 1.A little rust preventive oil deposits on the sandblasted surface (looks a little dirty),is normal and doesn't affect the usage. Absolutely guaranteed to be a good quality new bits!2.Insert the cutter shanks into the collets as deep as possible,leave 3mm or less shank showing. 3.Before the product is received for using, check the drill bit for cracks or chips,we provide perfect after-sales service.4.Trial cuts should be made on waste material before starting any project.SAFETY INSTRUCTIONS:1.Always wear dust protection mask,eye protection in the form of goggles, safety spectacles or a visor.2.Make sure use on a router machine for which the product is applicable.3.Please make sure that the Router Bits and router table connections is tight and avoid loosening and causing it to throw out !!!4. Suitable for all woodworking projects for both professionals and hobbyists.5.Always return the cutter to its packaging after use.6.Before each use check that the cutting tool is sharp and free from damage. ROUTING SAFETY1.Ensure the cutter can be used safely with the chosen router before use. Check that the cutter is fitted securely in the router collet.2.Do not take heavy and deep cuts in one pass as this will overload the router. 26.When stated, the speed range should be adhered to. Recommended speeds are shown in shop products descriptions.