La description

1.Designed for fast and efficient core drilling for low horse power electric hand held motors from 3 ~ 5 HP.
2.Our thin wall core bits are fast penetrating for drilling reinforced concrete, concrete block, brick and stone. Ideal for drilling anchor holes and small diameter holes in floors, walls, and ceilings.
3.1/2” to 4” diameters are available.
4. Bond system:Metal bond
5. Working Material:diamond
6. Techonology: Laser welded
7. More aggressival and long life
8.Diamond thin wall core drill bits China
9.Quality is Garantueed by QC
*0.They are high diamond concentration provide aggressive cutting action, excellent for drilling reinforced concrete with high performance and durable life. They are designed with 5/8"**1 or M*4 or M*0 female thread and attached with a composite elasticity gasket so they can be mounted to any angle grinder and work on stone with vibration-proof.
*1 Try to make one of the best on in China for drilling concrete, granite,marble,and other construction Materials.