VT machining offers CNC Boring for D2 Tool Steel (UNS T30402 / 1.2379 / SKD11), typically supplied annealed or hardened. High-chromium, high wear resistance; harder to grind than A2.
CNC Boring Notes for D2 Tool Steel
Boring bars for D2 Tool Steel are chosen for rigidity and CBN inserts are used when the bore is finished in the hardened state.
For estimating, a 100 × 100 × 10 mm block of D2 Tool Steel weighs about 0.77 kg.
Starting Parameters for CNC Boring D2 Tool Steel
| Cutting speed (carbide) | 70-125 m/min |
|---|---|
| Feed | 0.056-0.175 mm/rev |
| Spindle speed, Ø30 mm bore | 740-1330 rpm |
| Insert / tool class | ISO P — CVD-coated carbide |
| Coolant | Emulsion; neat oil for tapping |
Starting values for D2 Tool Steel, Annealed or hardened; optimised on the first article.
Full material data for D2 Tool Steel (UNS T30402 / 1.2379 / SKD11) is on the CNC Turning D2 Tool Steel page.
More on CNC Boring Alloy Steel
Finishing options, quality documentation and general cnc boring guidance for all alloy steel grades are on our CNC Boring Alloy Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Boring D2 Tool Steel
Send a STEP/IGES model or PDF drawing, confirm D2 Tool Steel and its condition (we usually see it supplied annealed or hardened), the quantity, critical tolerances and any finish or certificate requirements.
D2 Tool Steel in Other Processes
Related
Send the drawing, the D2 Tool Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What surface finish is achievable on D2 Tool Steel with CNC Boring?
Surface finish on D2 Tool Steel is controlled to your specification; we confirm the achievable Ra against your callout.
What material thickness or size range suits CNC Boring D2 Tool Steel?
Turned D2 Tool Steel parts are produced from bar or chuck stock across a wide diameter range.
What is the typical lead time and minimum order for CNC Boring D2 Tool Steel?
CNC Boring prototypes for D2 Tool Steel can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.
What tolerances can you hold for CNC Boring D2 Tool Steel?
Achievable tolerances for D2 Tool Steel turning depend on the alloy, geometry and feature size. Turning holds diameter tolerances to around ±0.005 mm with concentricity within 0.01 mm. Exact figures are confirmed against your drawing callouts.