Specification Brand : toolant BulletPoint1 : Enhanced 4-flute design reduces stress and helps the bit run cooler, and for fast dust removal. BulletPoint2 : The concrete drill bits are tipped with durable YG8C tungsten carbide and with 40Cr carbon steel body. They are harder, tougher and more resistant and durable to extreme loads for longer tool life and faster performance in masonry. BulletPoint3 : The wider and deeper U-shaped flute design cleans debris out fast for easier, efficient drilling, work time longer. BulletPoint4 : Concrete drill bits set is fully compatible with All SDS-Plus Rotary Hammer Drill, like BOSCH, Dewalt, MAKITA, Milwaukee, etc. Ideal for drilling holes in concrete, brick, stone and masonry. BulletPoint5 : All day after-sale service. If you have any questions, please contact us via amazon. Thanks for choosing toolant. ExternallyAssignedProductIdentifier : 6975500462266 ExternallyAssignedProductIdentifier1 : 000346638233 ExternallyAssignedProductIdentifier2 : 0000346638233 IncludedComponents : (1) 5/16 In. x 9 In. SDS-plus Speed Clean Dust Extraction Bit ItemName : toolant Rotary Hammer Drill Bits Set SDS Plus Bits 5/16"*12" 1pc, Impact Rotary Hammer Carbide-Tipped 4 Flutes Drill Bit for Bricks, Blocks, Stone ItemPackageDimensions_Height : 31.8 centimeters ItemPackageDimensions_Length : 1.4 centimeters ItemPackageDimensions_Width : 1.8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : rotary-hammer-drill-bits ItemTypeName : 5/16 In. x 9 In. SDS-plus® Speed Clean™ Dust Extraction Bit Manufacturer : toolant Material : Alloy Steel Material1 : Carbide Material2 : Carbon Steel ModelName : HCD2051 ModelNumber : HCD2051 NumberOfBoxes : 1 NumberOfFlutes : 4 NumberOfItems : 1 PartNumber : TA01023002 Pattern : Full Carbide Head ProductSiteLaunchDate : 2022-12-06T03:00:39.030Z Size : 5/16" Diameter Style : 12" Length*1pcs SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Steel,Stone UnitCount : 1