Purchase Qty. Reference FOB Price
1-19 pieces US$122.00
20-49 pieces US$120.00
50+ pieces US$118.00
Product Description
Product Description 91# flat top coreless drill bits for mining. Common models 75, 94, 113, 133, 153mm Commonly used drill pipes 42, 50, 63.5, 73, 76, 89mm Mainly used for grouting holes, wattle discharge holes, slopes, supports, anchor cables, wells Applicable strata red sandstone, ...