Durable Quality Taper Drill Rods with Various Angle

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 0.6 m to 3.6 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 11 and 12-degrees are normally used on modern drill rigs, like our model no. PD-Y58 crawler hydraulic rock drill. Also for Y6, Y10, Y24, YT24, Mobile rock drill pneumatic and hydraulic. 

 

Shank Style	Length		Tapered Angle
	Mm	foot/inch	4 degree 7 degree          11 degree 12 degree
Hex19 × 108mm	400 ~ 4,000	1’ 4” ~ 13’ 1”
Hex22 × 108mm	400 ~ 9,600	1’ 4” ~ 31’ 6”
Hex25 × 108mm	600 ~ 6,400	1’ 11 5/8” ~ 21’
Hex25 ×159mm	800 ~ 6,400	2’ 7” ~ 21’