Note:
1.The router bit is NOT big enough to make a deep cut into the wood. You can cut a cut before using the keyhole bit to provides relief. Go easy on the feed and back off every couple of inches before resuming with the cut.
2.The short clamping of this product might cause bend.The tool must be fully inserted and securely tightened so that we can use the clamping force that must be provided during tool machining, failure to do so may result in breakage and damage to the tool shank.
3.This router bits are designed for portable and desktop woodworking machines, it can not be used in electric drill & drill machines.
4.Suitable for cutting wood, MDF, particle board, plywood, acrylic and different wood composites. Avoid cutting metal and non-wood materials such as steel, iron and sand.