Spyder 6-3/8-in Carbide-Tipped Non-Arbored Hole Saw

10x more cuts and 5x faster than standard bi-metal hole saws. Spyder's Rapid Core Eject arbor removes cores without prying, cuts at an angle, and enlarges existing holes. Drill wood, cement fiber board, porous concrete block, brick, ceramic wall tile, plastic/PVC, more. 10x more cuts and 5x faster than standard bi-metal hole saws - effortlessly eject the core with the push of a button. Tungsten carbide tipped for extended life, clean cuts and extreme material drilling versatility. Eject the core, enlarge holes and cut at an angle using Spyder's Rapid Core Eject arbor and pilot bits. Universal 5/8-18 thread uses Spyder Hex10 arbor/pilot bits or other universal hole saw arbors; 2-3/8-in depth of cut. Application: wood, MDF, plywood, cement fiber board, concrete block, wall tile, brick, plastic, fiberglass, more. Not for use in hammer mode, or for drilling metal, wood with nails, or in block/brick/tile applications with a Mohs hardness of 6 or greater. Always use a drill motor with a support handle.