Mining Drill Bits

75mm 4-blade Non-core PDC Bit

Our factory manufactures high-performance 75mm 4-blade non-core PDC bits specially designed for horizontal drilling in marble and granite quarrying and mining operations. Made of premium 42CrMo alloy steel with professional quenching and tempering heat treatment, this PDC drilling bit features high hardness, strong toughness, impact resistance and deformation resistance.
Adopting integral casting technology instead of split welding structure, the bit body is more stable and durable, effectively avoiding crack and delamination during heavy-duty horizontal drilling. The innovative spiral bit body design optimizes chip removal, reduces drilling resistance and greatly improves drilling speed. It perfectly matches 73mm drill rod with customizable internal and external threads, compatible with all kinds of horizontal drilling machines for stone cutting, cross drilling and mine exploitation.