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            Welcome to the official website of Zhenjiang Zhengda Tools Co., Ltd.!
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            Model Specification of Straight Handle Twist Drill

            Release time:2019/4/24 15:46:53    Source:www.fjlgs.com    Author:Zhenjiang Zhengda Tools Co., Ltd.

            straight handle twist drill, generally divided into national standard and American standard, national standard as long as the decimal point after the Arabic number does not exceed two digits, such as 10.0 10.2 10.25. US standard, main specifications 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4, 17/64, 9/32, 5/16, 21/64, 11/32, 23/64, 3/8, 25/64, 13/32, 27/64, 7/16, 29/64, 15/32, 31/64, 1/2. In addition, there are some special drills, such as flanging drills, some non-standard drills produced according to customer requirements!



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