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The chuck body is made of cast iron.The reversible jaws and operation screw are made of high quality carbon steel jaws and are hardened precision ground
| Chuck Dia. | Hole Circle | Thru Hole | Model No. |
| 3"/80mm | 2.59"/66mm | .86"/22mm | 429-4003 |
| 4"/100mm | 3.30"/84mm | .984"/25mm | 429-4004 |
| 5"/125mm | 4.251"/108mm | 1.181"/30mm | 429-4005 |
| 6"/160mm | 5.708"/130mm | 1.574"/40mm | 429-4006 |
| 8"/200mm | 4.126"/104.8mm | 1.968"/50mm | 429-4008 |
| 10"/250mm | 4.724"/120mm | 2.559"/65mm | 429-4010 |
| 12"/320mm | 6.496"/165mm | 3.74"/95mm | 429-4012 |
| 16"/400mm | 7.283"/185mm | 4.921"/125mm | 429-4016 |
| 20"/500mm | 9.291"/236mm | 6.299"/160mm | 429-4020 |
Z&Y TOOL SUPPLY Co., Ltd. is a trading company of cutting tools,measuring tools,machine accressories and some machines worldwide. Established in 2010 and headquartered in Qingdao,Shandong, China.
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