Request a Quote from Proficient Machining Inc Not sure this is the right shop? Tell us what you need and we'll recommend the best matches. Download Shop Profile (PDF) × Download Shop Profile Enter your email to download a PDF with Proficient Machining Inc's full profile — capabilities, certifications, contact info, and more. Email Address Download PDF We'll never share your email. No spam, ever. Contact & Location 3455 3 Mile Rd NW, Grand Rapids, MI 49534, United States (616) 453-9496 [email protected] http://www.proficientmach.com/ Own this shop? Claim it to update your info and manage your listing.Claim Your ListingPremium listings include a verified badge, business description, priority search placement, employee count, and year established.