Description
Offers a complete line of tapered rods and bits for all of your hand-held pneumatic drilling needs. For mine, quarry, and tunnel work, we provide quality tools that withstand the toughest rock drilling demands.
With our comprehensive product line, you can find the exact configuration to integrate into your drilling operation. Our tapered bit and rods come in a variety of taper angles, and we provide tapered rods in a full range of shank configurations and steel hex diameters. Our tapered drill bits include three designs cross bits and button bits and chisel bits. tapered rods are available with high-frequency or fully carburized heat treatments.
| Product Parameters | ||||
| Product Name | B22 B25 H22 H25 Tapered Drill Rod | |||
| Material | 8CR 8CR alloy capillary 95CRMO 55SIMNMO etc special steel | |||
| Forged Or Rubber | forged | |||
| Length Of Tail Handle | 108 83 etc | |||
| Degree | 7/11/12 degree | |||
| Length range | 0.5m-6m or customized | |||
| Used With | 7/11/12 degree taper bit | |||
| Used | stone quarry drilling | |||
The whole production involves multiple processes, including steel rolling, forging, quenching, tempering, etc. According to the different choices of customers, our company has different quality products, such as extra-excellent, excellent, ordinary drilling rods, etc. Customers can choose suitable drilling rods according to the different hardness of rock and types of jackhammer. Extra-excellent drilling rods QSAAA and GTIII can be applied to solid rock, III level or above and f≥12 rocks according to Protodikonov’s Hardness Coefficient of Rock. Excellent drilling rod QSAA and G30 is suitable for IV level or above and f≥12 rocks, ordinary drilling rod are suitable for IV level or below and f≤8 rocks.
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, and YT24, Mobile rock drills are pneumatic and hydraulic. For low-impact rock drills and softer rock formations, a narrow tape range of 7 degrees is used, such as in Indian, Saudi granite, and marble quarry. A comprehensive range of taper button bits, cross bits, and chisel bits with 6, 7, 11, and 12-degree taper, drill hole diameter: 28 mm-57 mm.
Carburization is a process used to harden the entire tapered drill rod surface both internally and externally to strengthen and extend the life of the tapered drill rod.
Shank Hexagon: 19*108 mm, 22*108mm, 25*108 mm, 25*159 mm; 6, 7, 11, 12-degree taper in most lengths, taper degree of drill steel is mostly imported for excellent drilling productivity. 
