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Tapered Drill Rod

Liaocheng Jinquan Construction Machinery Co.,Ltd - China manufacturer of rock drilling tools button bits top hammer rock tools DTH hammer button bits

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[China]

Address: Economic Development Zone, Liaocheng, Shandong, China (252300)

Contact name:David Zhang

Liaocheng Jinquan Construction Machinery Co.,Ltd - China manufacturer of rock drilling tools button bits top hammer rock tools DTH hammer button bits

Tapered Drill Rod

Country/Region	china
City & Province	liaocheng shandong

Product Details

Tapered drill rod is connected with jack hammer rock drills via forged hex steel collar, and when connected with tungsten carbide drill bits/head, with the method of pyramidal/conical structure. The normal conical degree is 6, 7, 11, 12 etc.

This type of tapered rod is most widely used in various types of drill rods, owning the largest proportion in the drilling tools fields. The hollow small section of drill rod mainly include hexagonal 19mm, 22mm, 25mm, 28mm.

(1) Steel grade: 95CrMo equivalent to SANDBAR 61.

(2) Shank size: hex.22mm*108mm, hex.22mm*159mm.

hex.22mm*80mm, hex.25mm*108mm. hex.25mm*159mm.

(3) Taper: 6, 7, 11, 12 degree etc.

(4) Length: 0.4m-10m.

Always tapered drill rod are used for ore mining, tunnelling, railways, highways, water and electricity construction, foundation drilling works etc.