Dremel Cutting Spiral Cutting Bits Multipurpose 561 26150561JA

Features:
For 'free' cutting in softer materials like soft wood, drywall and plastics
Cuts wood, plastic, fiberglass, drywall, laminate and aluminum and vinyl siding
High-speed cutter
Ideal for multi-purpose cutting
steel shank

What can you do with it: Best for cutting and drilling in soft materials such as soft woods (less than 12mm thick) and plastics. Great to go freehand to create the shapes you like. How to use: We recommend to use this bit with the Dremel Multipurpose Cutting Attachment, because it’s designed to help you maintain depth during the application. It’s important that the depth of the guide supports the cutting blade extending beyond the material by about 0.6 cm. (.25”). If the bit extends out too far beyond the material, it can be more difficult to control and can actually snap the bit.
Best control of the bit occurs when moving in a clockwise direction. Begin the cut at a 45 degree angle and then bring the accessory to 90 degrees. The tool should be set at a high speed, the feed rate of the material or the tool through the material should be slow and gradual. Too much pressure will cause this accessory to get “red hot.: Using the tip of the bit is not the best way to cut – we recommend using the sides of the bit, where the full cutting capacity of the fluting can be put to use. Materials to use on.
Soft materials like soft woods (less than 12mm thick), plastics, glass fibers and thin foils of aluminum. Recommended speed. Aluminum 20.000 – 35.000 RPM Hardwood 20.000 – 35.000 RPM Softwood 20.000 – 35.000 RPM Plastic 10.000-15.000RPM.