SDJCR 12-2B — toolholder, 3/4" square shank, 4.5" overall length. Made in the USA by RMC Tooling.
Indexable turning toolholder from RMC Tooling, machined in the United States. The shank is ground to a qualified reference surface, so the tool goes back into the turret at the same cutting-point location every time it is swapped — no re-touching off, no lost setup.
Built for production lathes and CNC turning centers. The insert pocket, seat and clamping hardware are all standard RMC service parts, listed below, so the holder stays in service for years instead of being scrapped when a clamp screw strips.
These are the service parts RMC lists for this style and insert size. Every one is stocked.
| Insert | DC_T-21.51 (e.g. DCMT 21.51) |
| Torx key | T-7 — Torx Wrench |
| Insert Torx screw | RMC-006 |
See all RMC spare parts & hardware →
Not sure how to read an insert code? Turning insert designation explained.
Specifications decoded from the RMC toolholder identification system (RMC 2020 catalog, page 2).
