I needed some material centerless ground, and got a very good quote, my parts were returned…read morepromptly, and all of the parts were in tolerance.

From the owner: We specialize in centerless grinding and cylindrical grinding to within .0001" of your…read morespecifications.

I have been going to Jan and Deily for the past year and a half, for various company projects, as…read morewell as my side-projects for my house and cars. So it has been due time for me to write a review for him. Before I do, I have to say it is funny to read other reviews on Yelp, like the one about pressing car bushings (which truly not even specialized car shops would do). I have to go back to Jan for that, because I did not know he did such things. I had given up on replacing bushings on my car, after being turned down by so many local auto shops and mechanics. Now for that reviewer that rated them badly for a four week lead time... what sort of expectation was that? A poorly-run machine shop has downtime to let anyone cut in. By all means go to those shops instead or pay an arm and a leg, if that is the expectation... however, Optima Precision operates like all properly run, established machine shops do... schedule your work into their operation or work an expedite out with Jan and Deily... We are even lucky they are open to our side-projects. Bottom line, talk it out with them. They are very open to making things happen! Anyways, just to give a little background, I formerly worked as a design engineer for Zodiac Aerospace's oxygen system division, that made a lot of pneumatic components such as valves and manifolds. I can certainly attest that Jan and Optima Precision has the expertise and capabilities to machine top-notch quality parts. Whether you are dealing with extruded, cold-pressed, tempered aluminum, steel or etc., or softer brittle plastics like plexiglass or acrylic, up to something like 6 feet by 4 feet (double check with him), he and his crew can take care of that. I originally went to Optima Precision because Jan and Deily were the more responsive, local machine shop. They are very approachable and easy to communicate with (their English is solid). Most importantly, their pricing and lead times were very competitive, compared to the other shops in the area. Easiest way to describe them is that they are flexible and understanding like the old machinists but they operate with the newer CNC mills (even though they have Bridgeports off to the side). In other words, they are not like other new machinists that refuse small orders and cannot think other than what their CNC machine tells them they can or cannot do. What do I mean by an old machinist? Jan did not just go off my engineering drawings, but he verified my design intent to make sure my parts would fit and functioned well in my application. He was more concerned with what I wanted my part to turn out as, rather than what his machines could or could not do. To affirm other reviews, Jan and Deily are truly open to make small quantities (even one or two pieces like other reviews stated) and, of course, scaling to large production quantities. If you have worked with machine shops enough, you would understand that Optima Precision is a no brainer to have your parts, at least, quoted there each time. Long review, but hope that helps you all when considering!

I approached Optima Precision to machine 2 simple holes in an automotive part. I explained exactly…read morewhat needed to happen and what the part was for. I mentioned I was not in a hurry and could leave it for the weekend. Before I could finish explaining and before price was even discussed I was interrupted and told the wait would be 4 weeks. To machine 2 holes? Shouldn't take a competent machinist more than 10 minutes. No thanks. I dropped the part off at another machine shop and had it back minutes later machined perfectly to specification.

From my experience this machine shop is a cylinder head only machine shop. But it's exactly what I…read moreneed for my projects. I brought a few pieces over here and they give good deals and quick turnaround. Be sure to strip down your head so that they could do the work that need to do and not charge you extra.

Super fast turn around time and quality work! When you walk inside you know it's their profession…read more I brought my rare Mercedes' c36 amg head to get resurfaced and they also did my valve seals.

Was not available until a week later. Insisted on a $100 minimum regardless of the size of the…read morejob. Actually a good thing since I ended up doing the job myself with help from friendly folks at Ace hardware.

From the owner: Best CNC Machine Shop in Fremont CA can do the size up to 80" x 60"…read moreWG D&M Machine Shop is an example of CNC machining and mechanical design excellence. With over 20 years of experience, Lander Wang and his team specialize in delivering precision-machined parts, ranging from small components to large-scale pieces up to 80″ x 60″. Our best CNC machine shop in Fremont CA, is renowned for rapid prototyping, advanced machining, and comprehensive fabrication services that adapt seamlessly from initial design to full scale production. To date, we have successfully worked with over 5,000 businesses, maintaining a high satisfaction rate of 98%, a testament to our commitment to quality and precision. In this 20 years of journey, customer satisfaction is our core mission. We use state-of-the-art equipment, including Haas, OKUMA, Akira Seiki, and CMM machines, to ensure the best quality control. Our ability to quickly respond to customer needs and beat any competitor’s pricing makes us a preferred partner in the region. Whether it’s enhancing R&D efficiency or delivering the fastest turnaround times in the market, WG D&M is constantly pushing the boundaries of what a machine shop can achieve.

Thank you Nick for doing my small job, your awesome. When I need more work done, I'll be back.read more

I had a 1945 kicker cover for my Harley Davidson that I damaged. Unsure if the job was too small…read morefor his shop, I went to Nick not knowing what to expect. Nick greeted me with a fantastic attitude and enthusiasm. He explained what needed to be done and assured me he had the best welders. A few days later, I got a call that my part was fixed. Nick is very helpful and has great work ethics. I will definitely be returning.

We have been doing business with Magnum machine shop for years and we are very satisfied with the…read morelevel of service we have always received and quality of work that that is delivered with the final part.

This company is committed to excellence! They have an incredible customer service--from the first…read morecontact, quick quoting, to the on time delivery, who knew this level of care still existed in the Silicon Valley? Definitely doing business with them again. I was also impressed that the owner mentors an award-winning high school robotics team. Giving back to the community is so important, as is mentoring our future robotic engineers.

From the owner: We are TMK Manufacturing, and pride ourselves on a history of making high quality precision…read moremachined components for the laser, medical, and nuclear industries for 35 years in the Silicon Valley. Under the ownership of Aaron Bennett and Israel Sanchez since 2006, TMK provides quality with a focus on customer service and an unparalleled attention to detail. The original founders of TMK had a vision for the company and it still holds true today. To give our customers the best custom precision work at the best price possible, and to be proud that all of our products are made, not just in America, but in the Silicon Valley, the heart of innovation and technology. For your tooling needs, with quick delivery and incredible detail, call on TMK. TMK is proud to announce an expansion into a larger facility to double our capacity and output. We are committed to helping our customers achieve their goals by exceeding expectations every time.

Does a good precised machining job. Cheap and fast . They…read morehave good knowledge on what they do. They offer advice upon confusion. Free quotes .

Felt the need to drop these folks a review due to the exceptional work. I had an excellent…read moreexperience with the service Fuentes Machine Shop provided . I was given prompt responses to my inquiry's and they made sure to be very thorough with the requirements . Turn around time was very fast. This was my first time using this shop and it won't be my last.

I will recommend anyone to get work done by Joshua at SYD Precision Manufacturing! Very responsive,…read morefast work and very precise! If I could give 10 stars I would. Joshua, at the end of the day wants his customers to leave his shop smiling and very happy with his work that he does. I'll be going back very soon!!

I have been a customer of Joshua's for three years, and I'm still constantly amazed by the quality…read moreand on-time delivery of Joshua's work. As a tech startup, we often look to machine parts with high tolerance and short lead time. Many of these parts have a complex geometry as well. Joshua can always handle the task very well and provide valuable insights on how the design can be improved. Joshua - hats off to you and your team!