Precision Machining

Home Precision Machining

Being an API-licensed facility, Black Lake provides precision machining services, manufacturing and repair of down hole drilling tools, surface equipment and general machining services for the oil and gas industry following the API specifications.

Black Lake is capable of servicing and repair of drill pipe, drill collars, pony collars, HWDP, pup joints, crossover subs, lift subs, stabilizers and more. Our services include the repair and machining of relief grooves, bore backs, fish necks, float bores and zip grooves.

Our machining division also offers:


  • Aluminum
  • Brass/Bronze
  • Copper
  • Stainless Steel
  • Steel
  • AISI 4130 NACE MR-0175
  • AISI 4140 L-80, P-95
  • AISI 4145 H – MOD


General precision machining services

General & precision machining is our specialty. Our machine shop is equipped with a variety of manual and CNC machines to get the job done.

Tolerances are greatly affected by part geometry and type of material. Our general & precision machining specialists will consult with you on every part of your project. We seek to provide the highest degree of precision possible.

Our machined parts are built to OEM spec when applicable and are guaranteed to perform. Whether you need general machining precision parts X-Overs, STBs, Sub manufacturer etc… we can produce what you need within days or weeks, not months.

Once you send us your design to ensure the part can be made to your needs and budget requirements. If so, one of our customer service reps will get back to you with a free, no-obligation quote.

High-quality finish, vast material options and precise tolerances have made CNC machining the preferred technology for end-use parts.


Drill pipe straightening

The drill pipe straightening service on all drill pipes from small rig 31 Foot lengths

The cost of Straightening Drill rods is a fraction of the cost of new pipes.

We can also offer a full MPI non-destructive testing, full thread repair service and hard banding application


Zinc phosphate

Black Lake corrosion process such as Zinc Phosphating has been providing customers with excellent finishes to products in the oil and gas industry. Our large capacity tanks can handle any size job for the oil and gas industry, from large drill pipes and casing to the smallest nuts and bolts.


Slot milling, Drilling and stenciling services

Drilling is the process of cutting holes in metals by using a drilling machine as shown • Drills are the tools used to cut away fine shavings of material as the drill advances in a rotational motion through the material. • Drilling is done by forcing a rotating drill into stationary job as on a drilling machine or by forcing stationary drill in a rotating work piece as on a lathe. • Drilling also done by milling machine with a drilling attachment. In this case the job is fed onto rotating drill.


Heat treatment in 156KW top hat furnace

Upon acceptance of the welding, the product shall, when required by the weld procedure specification be subjected to post-weld heat treatment. Post-Weld heat treatment shall take place in the box furnace wherever practical. Localized heat
treatment, using electrically heated ceramic mats, may be applied to items which are too large for the furnace. Thermocouples shall be attached to the product to ensure that an even temperature is being applied during the stress relieving process. The heating rate, stress relieve temperature, hold period and cooling rate shall be programmed as specified in the weld procedure specification for the job. All heat treatment activities shall be carried out within the parameters defined in the relevant Weld Procedure Specification. (W.P.S) Chart recorders shall be utilized to record temperatures and times of post-weld heat treatment. Pre-weld heat treatment charts shall only be recorded at the request of the.



Manufacturing and repair of down hole drilling tools

Black Lake is dedicated to providing machining services to designers and manufacturers of Downhole Drilling Motors. Our machined parts are used for the DirectionalHorizontal and Vertical drilling markets throughout the regions.

The CNC machines along with conventional machines to manufacture new tooling as well as re machine and repair existing oilfield tools. Our staff will also help with engineering and reverse engineering to improve existing downhole tools. We also provide welding services common to the maintenance of oilfield tooling.

Repairs include Rotary Shoulder Connections and modified acme threads for Stators, Top Sub Pins and Stator Adapter Pins.

All types and sizes of new Downhole tools including: Bearing Mandrels, Bent Housings, Flow Diverters, Rotor Catch Stems, Bearing Housings, End Caps. Drive Shafts, Top Subs, Bearing Adapters, Balance Pistons and Rotor Catch Nuts some samples for REF.



All types of API connections repair and Manufacture






Adaptor Manufacture



Bearing Mandrels Manufacture typical

End Caps Manufacture