tapered drill rod - taper rod,tapered drill steels

Tapered drill rod, another name called taper rod, tapered drill steels, this provides a hexagonal chuck section to provide leverage for the rotation chuck bushing. It usually has a forged collar to maintain the proper shank striking face position in the rock drill, and a tapered bit end.

Tapered steel lengths:

Available from 0.40m to 8.00 m in length, are measured from the collar to the bit end.

Shank Hexagon:

19 x108 mm, 22x 108mm, 25 x108 mm, 25 mmX159 mm 6, 7, 11, 12 degree taper in most lengths, taper degree of drill steel is mostly imports for excellent drilling productivity.

For drilling medium-hard to hard and abrasive rock formations, taper angles of 6, 7, 11 and 12 degrees are normally used on modern drill rigs, like YT28B, YT29A, Y24, YT24, Mobile rock drill pneumatic and hydraulic.

Specification:

1)Shank Hexagon: 19 x108 mm, 22x 108mm, 25 x108 mm, 25 mmX159 mm

2)Taper Angle: 6, 7, 11, 12 degree

3)Material:high quality alloy steel

Application:

Tapered drill rods are used in granite and marble quarry, gold mine, railway, tunnel, etc.

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