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Help Center76mm Shank Drill Rod for Extension the Length
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Specifications
Materials:ironapplication:extension drilling length
length:200mm/250mm/350mm/450mm/550mm
connection:by sthread
About US
Jindu Industrial & Commercial Corporation located at capital of hardware,Yongkang City Zhejiang Province.Sin-
ce the very beginning of establishment in 1995,the core of the main primary business at the field of manufactur-
ing,research and development of the diamond tools.After the 18years' development,Jindu Industrial Corporation
has become one of the biggest and most professional foundation for manufacturing,Research and developmen
-t of diamond tools industries in China,which is due to continuously investing in the overall enhancement of diam
-ond tools business areas and improving techniques,management skills and innovations.Jindu has aready beco
-me the only professional manufacturer in the field of engineering drilling and diamond bits.Products varieties in
-clude all types of drilling machines and drilling bits in China.
Our Management
Our Factory
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Product Picture
Diamond Segments
| O.D of core bits | Segment thicknes | Segment height |
| 38mm | 3.6mm | 8.5mm |
| 40mm | 3.6mm | 8.5mm |
| 44mm | 3.6mm | 8.5mm |
| 50mm | 3.6mm | 8.5mm |
| 57mm | 3.7mm | 8.5mm |
| 63mm | 3.7mm | 8.5mm |
| 76mm | 3.7mm | 8.5mm |
| 83mm | 3.7mm | 8.5mm |
| 89mm | 3.8mm | 8.5mm |
| 102mm | 3.9mm | 8.5mm |
| 108mm | 4.0mm | 8.5mm |
| 112mm | 4.0mm | 8.5mm |
| 120mm | 4.2mm | 8.5mm |
| 127mm | 4.2mm | 8.5mm |
| 132mm | 4.2mm | 8.5mm |
| 150mm | 4.3mm | 8.5mm |
| 160mm | 4.3mm | 8.5mm |
| 180mm | 4.5mm | 8.5mm |
| 202mm | 4.5mm | 8.5mm |
| 230mm | 4.7mm | 8.5mm |
| 244mm | 4.7mm | 8.5mm |
| 274mm | 4.7mm | 8.5mm |
| 300mm | 4.8mm | 8.5mm |
| 320mm | 5.0mm | 8.5mm |
| 340mm | 5.0mm | 8.5mm |
Specifications diamond core bit series
| Zhejiang Yongkang Jindu Industrial & Commercial Co., Ltd | |||||||
| size | size | ||||||
| Normail | Normail | Normail | Normail | ||||
| O.D of core bits | Barrel length | O.D of core bits | Barrel length | O.D of core bits | Barrel length | O.D of core bits | Barrel length |
| 25mm | <=300mm | 55mm | <=500mm | 100m | <=500mm | 160mm | <=500mm |
| 26mm | <=300mm | 57mm | <=500mm | 102mm | <=500mm | 166mm | <=500mm |
| 28mm | <=300mm | 58mm | <=500mm | 107mm | <=500mm | 180mm | <=500mm |
| 29mm | <=300mm | 60mm | <=500mm | 110mm | <=500mm | 190mm | <=500mm |
| 30mm | <=300mm | 63mm | <=500mm | 112mm | <=500mm | 202mm | <=500mm |
| 32mm | <=300mm | 66mm | <=500mm | 120mm | <=500mm | 210mm | <=500mm |
| 34mm | <=300mm | 70mm | <=500mm | 125mm | <=500mm | 220mm | <=500mm |
| 35mm | <=300mm | 71mm | <=500mm | 127mm | <=500mm | 229mm | <=500mm |
| 36mm | <=300mm | 73mm | <=500mm | 130mm | <=500mm | 244mm | <=500mm |
| 38mm | <=300mm | 76mm | <=500mm | 132mm | <=500mm | 260mm | <=500mm |
| 42mm | <=500mm | 80mm | <=500mm | 140mm | <=500mm | 274mm | <=500mm |
| 44mm | <=500mm | 83mm | <=500mm | 150mm | <=500mm | 300mm | <=500mm |
| 48mm | <=500mm | 89mm | <=500mm | 151mm | <=500mm | 320mm | <=500mm |
| 50mm | <=500mm | 90mm | <=500mm | 152mm | <=500mm | 345mm | <=500mm |
| 52mm | <=500mm | 92mm | <=500mm | 159mm | <=500mm | 400mm | <=500mm |
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