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6-65mm Pagoda Shape Hss High Speed Steel Triangle Shank Shank Spiral Pagoda Metal Steel Step Drill Bit Hole Drill Cone Drill
3-wings Carbide drill bit/non-coring bit/medium octagonal alloy three-lobe drill bit
3 Wings Step Drill Bit Well Drilling PDC Drag Bit For Mining Drilling Bit Geological Exploration Coal Mining taladro
6-65mm Pagoda Shape HSS High Speed Steel Triangle Shank Shank Spiral Pagoda Metal Steel Step Drill Bit Hole Drill Cone Drill
DTH drill bit spline down the hole mining DTH hammer with button core drilling bit for hard rock well & oil field
3 Wings 75mm 91mm 113mm 153mm-171mm Water Well Drilling Hard Rock PDC Drag Bits
Tapper of well water well rock geology coal field cemented tungsten carbide diamond PDC Coreless compact bit rock drill bit
Diamond Compound Plate Well Drilling PDC Scraper Tower Drill Bit With 3 Layers Diameter 110mm 133mm 153mm 171mm
1pc Drilling Tool 90 115 Drill Down-the-hole Drill K3 Impactor Full Model Drill Drill Pipe Factory Spot
Diamond Exploration Coreless Drill Bit Water Well Drilling PDC Drag Bit For Mining Geological Exploration Coal Mining brocas
High air pressure DTH deep hole rock drill bits 76-105mm CIR90 button hammer bits for well,tunnel, coal mining
DTH drill bit 150mm - 300mm spline down the hole bit mining hammer with button core drilling bit for hard rock well & oil field
China Manufacturer PDC drag bit/Non-coring PDC drill bit
High And Low Tooth Bit Diamond Drill Bit Well Drilling And Water Well Geological Exploration Rock Drill Bit
China Manufacturer PDC flat top bit/Non-coring PDC drill bit
40pcs Diamond bit 1004 geological pdc cutter oil drill super hard well drilling geological exploration reaming drill anchor rod
25pcs 13*08 High Quality PDC Cutter Inserts For Well Drill Diamond Composite Drill Bit
4 Wings Step Drill Bit Well Drilling PDC Drag Bit For Mining Drilling Bit Geological Exploration Coal Mining brocas
3 Wings 50 hole Thread Diamond Compact PDC Drill Bit Geological Prospecting Water Well Drilling Bit OF Drilling Machine Part
6-65mm Pagoda Shape High Speed Steel HSS Triangle Shank Shank Spiral Pagoda Metal Steel Step Drill Bit Hole Drill Cone Drill
6-65mm Pagoda Shape High Speed Steel HSS Triangle Shank Titanium Spiral Metal Steel Step Drill Bit Hole Drill Cone Drill
CIR76 90 100 110 120 130 140 150 160 low air pressure DTH mining hammer drill bits button core drill bit for hard rock, well
4 Wings Concave Reinforced Planar Composite PDC Diamond Compact Coring Water Well And Rock Drill Bit Ball sheet
4-wing PDC drill bit concave diamond composite drill bit non-core drilling hole horizontal coal mine pile geological exploration