SDS Plus Hammer Drills Wall Hole Saw Drill Bit Set Cutter Tools with Round Shaft Concrete Cement Stone Hole Opener, 55mm [Contains]: 1 x Hole Saw Bits, 1 x Connecting Rod, 1 x Pilot Drill Bit, 1 x Hex Bolt. [Premium Material]: The hole saw set for cement made of tungsten steel and carbide is strong and durable. It is robust enough to drill through hard stone and concrete. [Advantages]: Anti-hammering design for fast drilling, equipped with ventilation holes to easily remove dust produced during the drilling process, effectively improving drilling efficiency. [Wide Application]: This masonry hole saw kit easily drills through most common wall materials (brick, concrete, cement, and stone), allowing for the installation of AC tubing, water pipes, exhaust hoses, and more! Colour: As Shown Material: Metal Size: 55mm Package Contents: 1 x Drill set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual item. The measurement allowed error is 1-3cm.