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This is a set of HSS twist drill bits: HSS 10pc polished Tin coating from our manufacturer in China is used for wood and metal. The drill bit is composed of body and the shank. The design of chip removal pulls material away from the point and out from the hole. Smooth and sharp flutes are better for drill hole. 4241 HSS twist drill bits specially developed by our factory and supplier have a high performance, although it is cheaper than others, the Hardness can reach 60°-63°.
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Danyang Youjie Tools Co., Ltd.
Address: Houxiang Town, Danyang City, Jiangsu Province, China
Postal Code:212312
Country: China
E-mail:youjie@youjie-tools.com
Tel: +86-511-88012718
Fax：+86-511-88012723
Whatsapp:13815493056

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