What is the difference between Manual Machining and CNC Machining?
Manual machining is cone by a human, controlling the machine to make the cut. It takes skill, precision, and patience from the operator to cut your part. R&H Machines operators are skilled in this art and have been machining parts for over 25 years.

A CNC (computer numerical control) machine is run by a computer. It takes a CAD (computer-aided design) and converts the design into numerical coordinates that control the cutter. It allows for precision and the ability to make many parts that are identical. Our CNC machine operators are specifically trained on these computers and machines.
What is Plasma Cutting?
Plasma Cutting, also known as Plasma Arc Cutting, is a process that uses super-heated, electronically ionized gas (the plasma) to cut through a piece of metal. The plasma arc is created by compressed gas being blown, at high speeds, through a focused nozzle. An electrode near the nozzle creates ionization of some of the gas and produces an electrically conductive plasma channel. The electricity traveling down the plasma creates heat to melt through the metal, thus cutting it. This method is useful when cutting metal in a curved or angled shape.
What type of files do you need for quoting a machining or fabrication job?
STEM files are preferred; however, we can quote the job with a drawing or sketch of any sort. Old sketches from similar or previous projects can also be used to quote.
Do you need CAD files for CNC Machining?
Yes. Our CNC machines use CAD (computer-aided design) files to ensure a precision cut. We prefer STEM files, but if you do not have STEM files available, we can work with you to produce them. We can create your drawings for a small additional fee.
Can you help with reverse engineering?
Yes. We keep this process in-house, with our trusted employees. We are capable of reverse engineering many of the products you currently use.
What materials can be CNC Machined?
Steel is a common material that is used. We can also use Aluminum, Copper Alloys, Titanium, and Nickel Alloys. Our capabilities are not limited, and we work with both standard and exotic materials.
What are your payment terms?
Net30 is our standard payment terms. Of course, we will accept payment at the time of delivery as well.
What parts do you most commonly machine for the oil and gas industry?
We frequently do plug catchers, swivels, and mini snubbing units. But not all of our parts are specific to the oil and gas industry. If you need a part machined, just ask!
What are your lead times for projects?
Standard lead time varies on the complexity of each project and can range from 2 days to 6 months. Many of our standard products are on hand for immediate availability. We can discuss lead times at the time of quoting your project. A rush option is always available for an additional fee for those projects that are urgent.
What is the minimum quantity for an order?
We do not have a minimum quantity. Many of our projects are custom and sometimes only 1 is needed.
Can you retrofit threads on a location? Do you go onsite for projects?
Yes, we can retrofit threads on location, or provide a multitude of other services at your location. Some projects are better done at your location than in our shop.
Many companies are ISO certified. You show API-Q1 compliance. What is the difference?
ISO quality standards pave the way for quality standards. They are complete and stringent, guaranteeing a solid quality program. API-Q1 takes it one step further and defines those standards for the oil and gas industry. The program is just as stringent and it is more focused than ISO's general standards.
Do you have business liability insurance?
Yes, we are fully insured.