Sandblasting Polishing
High Percent of Bond Materials
High Grade of Diamonds
Competitive Price and Stable Quality
Strict Quality Control
Diamond Core Drill Bit Segment
Diamond,Metal Powder,Co,Ni,etc
Sharp & Long Life
Sinter,Hot Press,Cold Press
25-700mm
3.5mm/4.0mm/4.5mm/5.0mm
10mm/12mm/15mm
80 Holes with 114*150mm Deep
Bags/ Cartons