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Thread button bits:
(1) threaded connection: r22-r38, t38-t51.
(2) diameter: d35-127mm.
(3) package: wood case or plastic box.
(4) productivity: 30000pcs /month.
tapered button bit:
(1) connect size: 19, 22, 25 and etc.
(2) diameter: d26-100mm.
(3) tapered connection: 6 degree, 7 degree, 11 degree etc.
(4) package: wood case or plastic box.
(5) productivity: 50000pcs /month.
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