Specification Brand : KJAOYU BulletPoint1 : [Superior Materials]: Crafted from premium alloy steel components and top-notch Gemstone abrasive grains, this Gemstone core drill bit, with its 10.6in drill length, guarantees extended core longevity. BulletPoint2 : [Universal Thread]: Outfitted with a 5/8-11 universal thread, our core bit seamlessly assembles onto standard fixed or handheld drill machines, proving its versatility across multiple devices. BulletPoint3 : [Optimal Performance]: Designed with chip expulsion holes, engineered saw teeth, and a concentric shaft, this drill bit ensures Culmination drilling performance while promising extended durability. BulletPoint4 : [Versatile Drilling]: Suitable for both dry and wet drilling conditions, a touch of water can drastically prolong its lifespan, offering flexibility to your job requirements. BulletPoint5 : [Broad Applications]: Ideal for drilling through materials like concrete, red brick, marble, and more during air conditioner installations, plumbing setups, stair railing fittings, and infrastructural projects like highways and airports. FinishType : Finish IncludedComponents : inc ItemName : 2.5in Diameter Core Drill Bit 5/8‑11 Thread,diameter core drill bit - Wet and Dry Drilling Concrete Hole Opener - Efficient Hole Saw Drill Bit ItemPackageQuantity : 1 ItemTypeKeyword : core-drill-bits Manufacturer : KJAOYU PartNumber : KJAOYU7e82y3xcks ProductDescription : Presenting the professional-grade Gemstone core drill bit – your Supreme solution for construction tasks and home projects. Engineered for excellence, it promises performance and durability. Specifications Item Type: Diameter Core Drill Bit Material: Alloy Steel, Gemstone Package Contents 1 x Diameter Core Drill Bit 1 x Positioning Drill Bit 1 x Hex Wrench 1 x Cutting Wheel 1 x Washer Note Kindly allow for slight discrepancies in size due to manual measurements. Your understanding is greatly appreciated.