Purchase Qty. Reference FOB Price
20-99 Pieces US$3,949.00
100+ Pieces US$3,590.00
Product Description
Retrievable Enlarge Hole Opener Drill Reamer Bit for Oil Well Drilling Equipment Product Description KINGDRILLING DTH hole opener bits are manufactured from the highest quality aircraft alloy steel. Which are used to enlarge the size of a pilot hole most commonly for Blast hole drilling, ...