Specification Brand : XIANFENGHU BulletPoint1 : [High strength bevel eccentric twist M35 bit]: The bevel eccentric drill bit is made of industrial strength hard high-speed tungsten steel M35 to ensure efficient and stable drilling, specially to solve the drilling problems of deep holes, inclined holes, blind holes, etc., high-quality materials, durable, and the bit is not easy to corrosion or deformation. BulletPoint2 : [Widely applicable]: High strength oblique Angle special eccentric twist drill is suitable for a variety of materials, such as stone, concrete, wood, steel, brick wall, plastic, tile, marble, etc. BulletPoint3 : [Fast chip removal and high efficiency]: The unique skewed eccentric M35 cutter head design can easily penetrate various materials, and the U-shaped rotary groove effectively prevents chip accumulation and retention. BulletPoint4 : [Compatible machine]: High strength bevel Angle special eccentric twist bit suitable for charging drill, hand drill, bench drill, etc., easy to use, high efficiency. BulletPoint5 : [Bit size]: The twist drill bits 5pcs set include 2pcs 1/4 "(6mm),1pc 5/16" (8mm),1pc 3/8 "(10mm), and 1pc 1/2" (12mm) in various sizes to meet the needs of daily use, and the drill is hexagonal shank type, which is widely used and holds more firmly. CuttingAngleString : 135 degrees ExternallyAssignedProductIdentifier1 : 000346659481 ExternallyAssignedProductIdentifier2 : 0000346659481 ExternallyAssignedProductIdentifier3 : 00738226103525 FinishType : Uncoated GpsrSafetyAttestation : 1 IncludedComponents : (1) BM2014 3/8"X13" Cbd Tip Masonry Bit ItemName : High Strength Eccentric Twist Drill Bit Set 5PCS, Hard High Speed Tungsten Steel Masonry Concrete Bit Set for Stone, Marble, Glass, Tile, Wood. (1/4" 1/4" 5/16" 3/8" 1/2") ItemPackageDimensions_Height : 14.097 centimeters ItemPackageDimensions_Length : 1.397 centimeters ItemPackageDimensions_Width : 5.8928 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : masonry-drill-bit-sets Manufacturer : XFH Material : High-Speed Steel with Tungsten and High Carbon Content ModelNumber : f5d467d2-47b3-496a-946d-91c939ae653e NumberOfFlutes : 3 NumberOfItems : 13 NumberOfPieces : 5 PackageLevel : unit PartNumber : 6 6 8 10 12mm-black ProductDescription : Use notice 1. ceramic tile/glass/stone drilling needs to add water to cool down, extend the service life of the drill 2. When drilling the wall, be careful not to hit the steel bar, otherwise it may cause the edge to break