Flat-top PDC Drill Bit

50mm Flat‑Top Tungsten Carbide Sintered Body PDC Bit

To meet borehole requirements for medium‑small‑scale drilling projects, our factory supplies the 50mm flat‑top tungsten carbide sintered body PDC bit . Manufactured with monolithic tungsten carbide sintered substrate, it outperforms conventional steel‑body welded bits in impact resistance and anti‑abrasion performance. The flat‑top design removes the core‑barrel structure to realize high‑efficiency full‑hole drilling. It avoids repeated tripping for core retrieval and greatly boosts field drilling efficiency.

This 50 mm flat‑top PDC bit supports fully customizable male and female thread connections , compatible with standard threads including NC, REG, IF, FH. It directly fits your existing drill rods and tool assemblies with no extra equipment modification, and works with most common drill rig models. Optimized cutter layout ensures uniform force distribution during drilling, delivering consistent penetration rate with minimal fluctuation and reducing rig load. Combined with premium wear‑resistant PDC cutters, the tungsten carbide sintered body resists chipping and abrasive wear. It achieves long service life even in abrasive ground conditions and cuts down bit replacement frequency to lower overall project expenditure.

Suitable Formations

Works for soft to medium‑hard ground: clay, weathered rock, sandy shale, mudstone, coal seam, fractured weathered sandstone and gravel interbeds. Suitable for mixed alternating soft‑hard strata. Not recommended for solid ultra‑hard granite.

Application Scenarios

  1. Curtain grouting drilling : Pilot holes and grout holes for dams, water conservancy projects and slope stabilization. Produces smooth borehole wall to guarantee grouting quality.
  2. Mining operations : Exploration boreholes and shallow prospecting holes for open‑pit mines.
  3. Coal mine service : Underground prospecting holes, gas drainage holes and geological investigation holes in coal mines.
  4. Geotechnical investigation : Civil engineering survey, road foundation exploration.
  5. Shallow water well & anchor bolting : Shallow water well drilling and slope anchor hole drilling.

Popular Overseas Markets

Thanks to compact size and flexible compatibility, this 50 mm sintered‑body flat‑top PDC bit is widely accepted by drilling contractors and wholesalers in Philippines, Nigeria, Romania, Germany, Southeast Asia, Africa and South America . It is heavily used in local small‑to‑medium subcontract drilling jobs, with strong demand for both stock items and custom‑made orders.