Triangle Shank Vacuum Brazed Dry Diamond Core Drill Bit
Diameter: 20mm; Diamond Height: 10mm; Total Length: 65mm; Connection: Triangle shank suitable for Hand Drill, Bench Drill etc.
Designed for dry drilling in porcelain tile marble stone masonry brick normal stone and so on. Wet using can prolong its life
The drill bits with 4pcs slots on the top of the drill bit to improve the working efficiency of the hole drill
Vacuum brazing is the most effective and precise way of making diamond tools. It makes the industrial diamond grains permanently brazed to the edge of steel core, creating an unbreakable and extremely heat resistant segments
