Tapered rock drill rod work with tapered drill bits, it has different length for various applications, our taper drill rods come in a variety of taper angles, and we provide tapered rods in a full range of shank configurations and steel hex diameters for hand-held pneumatic drilling needs.
(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.