Brazing Pagoda Drill Bits Multi-layer Bits 20mm/35mm/50mm/Three Sizes Hole Enlargement Diamond Bits

1,High brazing process, efficient construction sharp dry cut, durable wet cut.

2,Three speed reaming and chamfering:20mm/35mm/50mm

3,Brazing multi-layer reamer ,expand hole, chamfering and edge trimming.

4, Dry Pagoda Bits, No need water and no need to change drill bits during work, saving time and improving efficiency.