Specifications:Tapered Drill Rod,Tapered Drill Steel
1. Hex.19mm, hex.22mm, hex 25mm
2. Body lenght: 400~8000mm
3. Tip Taper: 4, 6, 7, 11, 12 degree or others
4. Shank Lenght: 108mm
5. Shank Flushing Hole: Φ7.5~Φ8.5mm
6. Steel grade: 95CrMo Equivalent to SANDBAR 20 or C253, 55SiMnMo
7. Package:in wooden case or bundles
8. Productivity: 10000MT/month
Description: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 mto 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, likeour model no. PD-Y58 crawler hydraulic rock drill. Also for Y6, Y10, Y24, YT24, Mobile rock drill pneumatic and hydraulic.
For low impact rock drills and softer rock formations, a narrow tape range of 7 degrees is used, such as
Indian, Saudi’s granite and marble quarry.
A comprehensive range of taper button bits, cross bits and chisel bits with 6, 7, 11, 12 degreetaper, drill
hole diameter: 28mm-57mm.
1-12 inch middle-low/high air pressure DTH hammers & bits
Big hole high air pressure DTH hammer using in water well, oil, gas and construction drilling
Eccentric overburden drilling Equipment
Hole opener bit
Rock thread bit (R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, GT60)
Extension Rod, M/F Rod, M/m Rod, Drift Rod,
Shank adapter, coupling sleeves and all kinds of adapters
Compared with the oversea brands, our advantages are bellowing:
A. Our products can match over 95% against the original products
B. Price are competitive against the famous brands and best quality against the small factory
1. Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.
2. We have advanced technology and equipment.
3. Our technician has more than 13 year's professional working experience.
4. Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.
Types of drill rods
Tapered drill rods
Taper Angle: 4, 6, 7, 11, 12 degree
400mm to 8000mm
Hex22mm*108mm Hex25mm*159mm Hex19mm*108mm
Integral drill steel
Bit diameter: 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm, 42mm
400mm to 4800mm
Plug hole rods
Chisel bit diameter: 17mm, 20mm, 22mm
150mm to 710mm