7pcs Diamond Core Drill Bits

20-35-40-45-50-68 mm + Adaptor

M14 Thread Shank

Packing: Aluminium Box

FEATURES:

This drill bit is mainly used for drilling tile, ceramic, granite, marble, concrete and wall.

With the world advanced technology of diamond brazing, diamond ordered distribution makes the space between diamond grains becoming larger, which makes this drill bit is characterized in high efficiency cutting, excellent performance and long working life.