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Brand Name : JZTG
Model Number : steel tooth bit
Certification : ISO, SGS,
Place of Origin : Changsha , Hunan
MOQ : 10pcs
Price : Negotiable
Payment Terms : T/T, L/C, Western Union
Supply Ability : 20000 Piece/Pieces per Week
Delivery Time : 3-5days
Packaging Details : in wooden case
Material : Tungsten Carbide
Machine type : Rotary drill rig
Processing type : Forging& Welding
Use : Hard rock drilling
Size : 8-1/2 '
packing : Wooden Case
Roller Bits / Drilling Bits Rotary Piling Tools 8-1/2' Replaceable Type
| Size | TC Bit Dia.(mm) |  			 TC Bit No. (PCS)  |  			TC Bit Height(mm) | Dia. of Roller(mm) | Height of Roller(mm) | Remarks | 
| 8-1/2’ | 13 | 42 | 7 | 134 | 83 | Both Welding and holder type are available | 
| 13 | 55 | 7 | 130 | 83 | ||
| 14 | 42 | 9 | 138 | 83 | ||
| 14 | 55 | 9 | 134 | 83 | ||
| 15 | 45 | 8 | 141 | 83 | ||
| 10-1/2’ | 17 | 50 | 11 | 170 | 98 | |
| 12-1/4 | 14 | 75 | 9 | 186 | 130 | 
Introduction:
With 10 years’ experience on piling works, JZTG team is dedicated to design, manufacture and supply top cost-perforemance roller bits for hard rocks.
 1. Modern design special for foundation works;
 2. Material from top suppliers;
 3. Professional and modern production line;
 4. With built-in grease supplement system;
 5. Top level welding and heat treatment technology.

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                        Roller Bits / Drilling Bits Rotary Piling Tools 8-1/2' Replaceable Type Images |