GREAT's High-quality Bits Series I

PDC Reamer is the perfect tool for large diameter HDD bores. The size of the reamer is ranging from 12" to 50".

Normally drag bits are 3 wings, but we can make 4 or 5 wings following your drawings or samples.

Popular Size: 1305, 1308,1613,1616,1913

Overview Roller bitGREAT has customized manufacture several types of roller bit . It is including 90 ° U-shaped Roller Bit, 120 ° U-shaped Roller Bit and Starry Sky Roller Bit.The 90 ° U-shaped Rol...