Min. Order Reference FOB Price
1 Piece US$20.00-650.00 / Piece
Product Description
Casing bit characteristics: 1.Long service life: carbide ball teeth, strength≥ 2800N, hardness (HRA) ≥92 2.It has the advantages of high drilling quality, fast driving speed, high working efficiency and long service life 3.External waveform thread connection, the wind pressure is ...