Purchase Qty. Reference FOB Price
30-99 Pieces US$17.00
100-499 Pieces US$16.50
500-999 Pieces US$16.00
1,000+ Pieces US$15.50
Product Description
Product Description FIRIP's thread button drill bits are made by high quality alloy steel bar and tungsten carbides. Through heat treatment, our drilling tools are tough enough to meet rock drilling demands and have the least loss of energy while drilling the rocks. Besides, we can design ...