Feature:1. PERFORMANCE UPGRADE: This carbide hole saw is a great alternative to traditional bi metal hole saws, cutting faster, er, and lasts longer2. HIGH WORKING EFFICIENCY: This hole saw is easy to operate, with fast drilling speed, has high working efficiency3. EXCELLENT CARBIDE MATERIAL: The hole opener is made of carbide material with high hardness and strong impact resistance4. 125MM SPECIFICATION: The size of this hole saw is 125mm/4.9in, can also cut stainless steel and other hard alloys5. APPLICATION: This hole saw is widely used in concrete, brick work, drilling wall, stones, air conditioner installing, etc.Specification:Item Type: Electric Hammer Wall Hole SawMaterial: CarbideColor: SilverSpecification: Approx.125mm/4.9inWide Application: This hole saw is widely used for cutting holes in concrete, brick work, drilling wall, stones, air conditioner installation place, etc. Package List:1 xElectric Hammer Wall Hole SawNote:To help buyers choose a more suitable specification, concrete hole saws and connecting rods with center bits are sold separately, allowing buyers to freely mix and match.