For shops · Surface, cylindrical & centerless grinding shops

Precision grinding shops: tight-tolerance RFQs routed to you

Grinding is usually the finishing step a milling-only shop subs out, so the RFQ for the complete part lands on us. If your shop runs OD, ID, surface, or centerless grinders, we have the work.

Free to joinNo lead feesFinish work welcome

RFQs on the board

Grinding work on our board

OD and ID cylindrical grinding

  • Shafts, pins, bushings, and bearings ground to ±0.0001 in on OD
  • ID grinding on hardened bores and ring IDs
  • 4140, 52100, 4340, hardened tool steels (D2, A2), and stainless 17-4

Surface grinding

  • Flat ground stock, parallel plates, die shoes, and fixture bases
  • Hardened tool-steel inserts and gage blocks
  • Finishes 8–32 Ra

Centerless grinding

  • High-volume shaft and pin production in 303, 304, 316, and 4140
  • Through-feed and in-feed centerless for repeated profiles
  • Qty 500–50,000 pcs with first-article inspection

Jig grinding, double-disk, and specialty

  • Jig grinding on hardened mold inserts and gage work
  • Double-disk grinding on parallel-plate production parts
  • Honing, lapping, and super-finishing partners welcome

What qualifies you

What a qualified grinding shop looks like

OD / ID cylindrical grinders
Studer, Okamoto, Myford, or equivalent with CNC programmable positioning for repeatable features.
Surface grinders
Reciprocating with 10" x 20" or larger table; rotary surface grinders a plus.
Centerless grinders
Through-feed and in-feed capacity for production shaft work.
Inspection discipline
Air gages, CMM, surface-finish profilometer, and reliable round-and-cylinder measurement.
Heat-treat relationships
In-house or trusted vendor so hardened-then-ground parts come back on schedule.
Certifications
ISO 9001 is enough for most; AS9100 opens aerospace; ISO 13485 opens medical implant/instrument grinding.

What you get

What a grinding partner gets

Free to join; no fees

No subscription, no per-RFQ fee, no commission.

Finish-side RFQs you would not see

Many of our RFQs are for complete parts (milled + ground); without a grinding partner we subcontract piecemeal. With you, we route the finish work directly.

Realistic tolerance expectations

We only route grinding RFQs where the drawing actually calls for it — not misread ±0.0001 CAD errors.

Keep your own customers

Our RFQs are new to your shop; we do not approach your existing accounts.

Pair with partner shops

If a job needs milling at one shop and grinding at yours, we coordinate the handoff rather than making either shop quote the whole thing.

Common questions

The pushback we hear, answered

Yes. Our marketplace routinely sends grinding-only work to grinding specialists, and we also pair you with milling partners for complete-part jobs. You can quote finish-only or complete-part depending on preference.

Where the RFQs come from

The buyer pages that attract this work

These are the capability, material, and industry landing pages buyers find on Google and in AI search. RFQs from them land in our inbox and route to the matching shops.

Add your grinding capacity and we route the next matching RFQ to you

List OD, ID, surface, or centerless on your profile with your sizes and tolerances, and we send the next matching grinding RFQ your way.