Specification Brand : Mavaol BulletPoint1 : [EXCELLENT EMERY AND ALLOY STEEL] This hole saw kit features high hardness and wear for fast drilling speeds. BulletPoint2 : [ACCURATE POSITIONING] Quickly find the location to open with strong performance. BulletPoint3 : [NON-SLIP RECESS DESIGN] Small grooves prevent slipping for efficient hole opening. BulletPoint4 : [NEAT HOLE OPENING] Clean, sleek holes with low cutting and fast speeds. BulletPoint5 : [WIDE APPLICATION] Versatile for hard materials like glass, tile, and marble. Color : Silver, Black CompatibleMaterial : Carbon Steel ExternallyAssignedProductIdentifier1 : 0763508827509 ExternallyAssignedProductIdentifier2 : 763508827509 IncludedComponents : 5* Hole Saws 2* Shafts 3* Center Positioning Drill Bits ItemName : Brazed Hole Saw Kit Precision Drill Glass Marble Granite Triangle Shank ItemPackageDimensions_Height : 4 centimeters ItemPackageDimensions_Length : 12 centimeters ItemPackageDimensions_Width : 5 centimeters ItemTypeKeyword : hole-saw-sets Manufacturer : Mavaol Material : Carbon Steel, YG10 Alloy, 40Cr ModelName : Mavaolcu0aed192g ModelNumber : Mavaolcu0aed192g NumberOfItems : 1 PartNumber : Mavaolcu0aed192g ProductDescription : [EXCELLENT EMERY AND ALLOY STEEL] This hole saw kit features high hardness and wear for fast drilling speeds. [ACCURATE POSITIONING] Quickly find the location to open with strong performance. [NON-SLIP RECESS DESIGN] Small grooves prevent slipping for efficient hole opening. [NEAT HOLE OPENING] Clean, sleek holes with low cutting and fast speeds. [WIDE APPLICATION] Versatile for hard materials like glass, tile, and marble.