Features PERFORMANCE UPGRADE: This carbide hole saw is a great alternative to traditional bi metal hole saws, cutting faster, cleaner, and lasts longer HIGH WORKING EFFICIENCY: This hole saw is easy to operate, with fast drilling speed, has high working efficiency EXCELLENT CARBIDE MATERIAL: The hole opener is made of carbide material with high hardness and strong impact resistance 125MM SPECIFICATION: The size of this hole saw is 125mm/4.9in, can also cut stainless steel and other hard alloys APPLICATION: This hole saw is widely used in concrete, brick work, drilling wall, stones, air conditioner installing, etc. Feature: 1. PERFORMANCE UPGRADE: This carbide hole saw is a great alternative to traditional bi metal hole saws, cutting faster, cleaner, and lasts longer 2. HIGH WORKING EFFICIENCY: This hole saw is easy to operate, with fast drilling speed, has high working efficiency 3. EXCELLENT CARBIDE MATERIAL: The hole opener is made of carbide material with high hardness and strong impact resistance 4. 125MM SPECIFICATION: The size of this hole saw is 125mm/4.9in, can also cut stainless steel and other hard alloys 5. 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 Saw Material: Carbide Color: Silver Specification: Approx.125mm/4.9in Wide Application: This hole saw is widely used for cutting clean holes in concrete, brick work, drilling wall, stones, air conditioner installation place, etc. Package List: 1 xElectric Hammer Wall Hole Saw Note: 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. Package List 1 x Electric Hammer Wall Hole Saw