Drill string tools

Sandvik drill string tools complement our line of bits and tools to give us the capabilities of providing a complete package of drilling consumables for all types of applications.

Drill pipe

Sandvik drill pipes are manufactured to the highest quality assurance standards using an optimized combination of tube quality and hard facing materials.

RP416 ultra premium grade special alloy
RP414 combination
RP412 premium grade

Features and values

• Premium quality, heat-treated seamless tubing for maximum strength
• Hard-facing material for durability and longevity

Key specifications

Outer diameter	76.2-339.7 mm (3-13 3/8")
Wall thickness	5.2-38.1 mm (0.2-1.5")
Tube weight	9-286 kg/meter (6-192 lbs/ft)
Tube length	0.9-18.3 m (3-60 ft)

One of many models of Sandviks RR610 series

RP442 Shock subs

Sandvik shock subs are designed to lower drilling vibrations and prevent them from being transmitted into the rotary drill head

Features and values

• Reduces drill rig mast maintenance
• Provides smoother on-bottom running
• Extends bit life
• Lowers rotary drill head repairs

Key specifications

Outside diameter	235-457 mm (9 1/4-18")
Length	349-737 mm (13 3/4-29")
Axial load	5500-91000 kg 12000-200000 lbs
Torque rating	Up to 400 HP at 100 RPM

One of many models of Sandviks HDX series

RP424 Welded blade stabilizers

Sandvik welded blade stabilizers provide smoother bores and faster penetration rates when stabilizing and controlling hole deviations.

Features and values

• Minimizes rough bores, spiral bores, ledges and crooked holes
• Provides smoother bores to minimize particles in hole bottom and reduce re-drill time
• Best for soft to medium formations in wet or dry conditions

Key specifications

Hole size range	159-311 mm (6 1/4-12 1/4")
Body diameter	127-273 mm (5-10 3/4")
Length	673-781 mm (26 1/2-30 3/4")

RP427 Roller stabilizers

Sandvik roller stabilizers provide more reaming and cutting action, incorporating Sandvik's tungsten carbide inserts. Best for hard and abrasive formations.

Features and values

• Eliminates scraping and gouging of guiding elements
• Maintains concentricity
• Provides adequate stabilization without imposing excessive torque

Key specifications

Hole size range	159-311mm (6 1/4-12 1/4")
Body diameter	127-273 mm (5-10 3/4")
Length	673-781mm (26 1/2-30 3/4")

RP432 Static deck bushings

Sandvik deck bushings centralize the drill pipe over the hole, prevent misalignment of the bit and drill string and extend the life of the bit and drill string.

Features and values

• Best for operation with DTH (down-the-hole drilling)
• High alloy, heat-treated materials provide longer service life

Key specifications

Outside body diameter	191-483 mm (7 1/2-19")
Inner sleeve diameter	107-340 mm (4-13 3/8")
Flange diameter	214-510 mm (8-20")

RP434 Rotary deck bushings

Sandvik deck bushings centralize the drill pipe over the hole, prevent misalignment of the bit and drill string and extend the life of the bit and drill string.

Features and values

• Three ball bearing race design insures smoother, longer bearing life
• More cost effective than static bushings

Key specifications

Outside body diameter	191-483 mm (7 1/2-19")
Inner sleeve diameter	107-340 mm (4-13 3/8")
Flange diameter	214-510 mm (8-20")

RP452 Rotary adapter sub

Sandvik rotary adapter subs are used to connect the various components throughout the entire drill string from the drill bit to the rotary head. They are available as bit (bottom) subs, top (spindle) subs, cross-over subs, and thread-saver subs.

Features and values

• Hard face material in the 58 to 60 Rockwell C range
• Hard facing available on all subs (optional)
• Optimum hard material wear protection on bit subs

Key specifications

Outside diameter	89-311 mm (3 1/2-12 1/4")
Standard length	457-1067 mm (18-42")
Specified wrenching	Flats, Squares, Slots

RP425 Water separating bit sub

The RP425 protects bit bearing life by limiting dust suppression water from entering the bearings, protecting them from water-induced corrosion. It does not require any changes to the drilling parameters, and it eliminates bit sub expenditures.

Features and values

• Highly wear-resistant high alloy steel
• Either standard cross-over sub or 3 or 4 blade reamer with offset blades

Key specifications

Outside diameter	Pin thread	Box thread
165.1 mm (6 1/2")	4" BECO, 4 1/2" BECO	4 1/2" API Reg
177.8 mm (7")	4 1/2" BECO	4 1/2" API Reg
193.68 mm (7 5/8")	5 1/4" BECO	6 5/8" API Reg
219.08 mm (8 5/8")	6" BECO	6" BECO 6 5/8" API Reg
234.95 mm (9 1/4")	6" BECO	6" BECO 6 5/8" API Reg
273.05 mm (10 3/4")	8" BECO	8" BECO 6 5/8" API Reg