RD 210-4

Application: Used for drilling holes.
Machines: Angle grinder, portable engineering drill machines or drill machines with stand rig (thread type: 1/2”BSP, 1-1/4”UNC, M-14, 5/8”-11…).
Features: Dry or wet drilling. Brazed, laser welded, vacuum welded type or electric plated type.
Material: Granite, reinforced concrete, brick, wall, brick, etc.