Specification:Cutting Diameter: 30mm / 1.18-inchDrilling Depth: 340mm / 13.39-inch (approx.)Connecting Rod: 350mm / 13.78-inchFeatures: for SDS X4 Impact DrillMaterial: Carbide, CR (Chromium Steel)Suitable For: brick, concrete walls, air conditioning openings Package Included:1 x Wall Hole Drill Bit, 1 x Connecting Rod, 1 x Drill Bit, Some Mounting Parts Description:QUALITY MATERIAL: Made of carbide tipped material of ultra-sturdiness, durability for years.SIMPLE TO USE: Simple operation, easy to use, and fast perforated.WIDE USE: Used for drilling walls, stones, bricks, or installation of air-conditioning etc..SPECIAL SHANK DESIGN: Special direct system shank, male thread adapter, replace the broken adapter with drill chuck.