1 PCS Diamond Brazed Step Drill Bit
Material: High Manganese Steel and Top-Grade Diamond Particles Coating
Reaming Diameter: 20-35-50mm
Reaming Depth: 12-12-12mm
Handle Adaptation Interface: M10 Standard Thread
Versatile Use: Metal, Concrete, Tile, Marble, Ceramic, granite, quartz, Porcelain, Engineered Stone, microcrystalline stone