PACKAGE INCLUDED: 1 pc 6-1/4 inch hole saw, 1 dust bowl(NOT SUITABLE FRO THIS ARBOR), 1 arbor, 2 drill bit, 1 hex key. PREMIUM BI-METAL CONSTRUCTION: Crafted from industrial-grade high-speed steel (M42 HSS 8% Cobalt) , this 6-1/4" hole saw delivers superior durability and long-lasting performance. The bi-metal design withstands high heat and resists tooth stripping, making it perfect for heavy-duty use on the job site . AGGRESSIVE VARIABLE-PITCH TEETH: Engineered for fast, chatter-free starts and smooth cutting action, the variable tooth geometry ensures efficient material removal and a clean, burr-free edge. The precision-ground teeth cut quickly through tough materials while reducing vibration for better control . WIDE MATERIAL COMPATIBILITY: This versatile cutter is designed to tackle a variety of materials with ease. It slices through wood, plastic, drywall, fiberglass, and even non-ferrous metals, making it the ideal tool for installing recessed lighting, ceiling fans, air ducts, or speakers . EASY SLUG REMOVAL DESIGN: These holes allow for quick and easy ejection of material plugs, minimizing downtime and keeping your work moving efficiently . DEEP CUTTING CAPACITY: With a robust 1-3/8" (35mm) depth of cut, this hole saw powers through thick materials like dimensional lumber and composite decking in a single pass, ensuring clean and precise holes for professional results every time.