hand rock drill

BIT SPECIFICATION
Bit Type 8-1/2" GSD1635 IADC Code S223
Blade 5 Cutter Size (mm) 16MM; Φ13MM
Cutter Φ16×30;Φ13×18

Place of Origin: Hebei, China (Mainland)
Brand Name: Great
Model Number: GSD1635TX
Type: Drill Bit
Machine Type: Drilling Equipment

Specifications 1>Meet with API Spec7-1 &ISO 9001:2008 2>Good quality and after-sale service 3>30 years experience in it.

1. Bit cones (segment) are spited from tricone bits and welded to build a new bit.
2. The advantage of this series of bits is that it can be made

Our Other Main Products:
TCI Tricone Bits (2 7/8"-36")
Steel Tooth Bits (2 7/8"- 36")
PDC Bits (3 7/8"-17 1/2")
Drag Bits (3" -15")...

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