Injection Molding
Tooling and molding for your repeat plastic parts.
O1 Tool Steel Machining for Your Gauges & Fixtures
For your O1 tool steel machining services inquiry, define the supplied condition and the final gauge, fixture or die fit. Plan the specified thermal route, finishing stock and receiving evidence before production.
AISI O1Confirm your product specification.
Supplied ConditionSeparate annealed and hardened stock.
Final Working FitAllow for the complete route.
Receiving RecordsAgree grade and inspection evidence.
Know Your O1 Material Before You Order
O1 is an oil-hardening cold-work tool steel used for tooling components. Review O1 tool steel properties against the actual product, section and condition; neither the grade name nor a dimensional-stability description guarantees your final fit.
AISI O1
Cold-work tool steel. For European sourcing, review 1.2510 / 100MnCrW4 and the actual product specification.
2 States to Define
Annealed O1 tool steel for initial machining and hardened O1 tool steel for the working condition require different planning.
A comparison name supports review; it does not approve a substitute.
O1 Tool Steel Composition
| Element | K460 producer average wt.% |
|---|---|
| C | 0.95 |
| Si | 0.25 |
| Mn | 1.10 |
| Cr | 0.55 |
| V | 0.10 |
| W | 0.55 |
BÖHLER K460 average analysis. Producer data refer to long products. Confirm your supplied product form and material record; these are not acceptance ranges.
Your Condition Controls the Route
| Stage | Your required decision |
|---|---|
| Incoming stock | Product form, actual condition and grade identity. |
| Specified treatment | Target condition, responsible party and required evidence. |
| Finished tooling | Final datums, working features and inspection after finishing. |
The specified thermal route must suit your actual section and geometry.
Compare Selected Alloy Content
Selected producer averages · wt.% · common axis 0–6%
O1 / K460 · C
0.95%
A2 / K305 · C
1.00%
O1 / K460 · Cr
0.55%
A2 / K305 · Cr
5.20%
03%6%
Composition only. These bars are not a wear, toughness, machinability or corrosion score. They are not test results from your material lot.
Custom O1 Tool Steel Parts for Your Tooling
Select the part you need, then review machining, condition and final acceptance.
Define Your Gauges Before Cutting
For your O1 tool steel gauges, identify the measuring function, reference faces and mating feature. A machined gauge blank is not a calibrated instrument unless calibration is part of the agreed scope.
| Your decision | What to define |
|---|---|
| Your fit | Measuring feature, reference planes and accepted inspection state. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Plan Access and the Final Datum
Plan O1 tool steel CNC machining around the gauge function and reachable reference faces. Leave the controlled steps or profile for the specified final finishing stage.
| Your decision | What to define |
|---|---|
| Your fit | Measuring feature, reference planes and accepted inspection state. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Separate Supplied and Working Conditions
Define how the thermal route, remaining stock and datum recovery relate to the required gauge geometry. Review thin webs and asymmetric material removal before release.
| Your decision | What to define |
|---|---|
| Your fit | Measuring feature, reference planes and accepted inspection state. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Inspect the Finished Functional Fit
Agree dimensional verification, measurement environment and any separate calibration requirement. Identify which records your receiving team needs.
| Your decision | What to define |
|---|---|
| Your fit | Measuring feature, reference planes and accepted inspection state. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Define Your Fixture Components Before Cutting
For your O1 tool steel fixture components, connect locating fits, supporting faces and clamping loads to the finished assembly. State which surfaces establish the workpiece position.
| Your decision | What to define |
|---|---|
| Your fit | Locating pin, supporting jaw, mounting faces and workpiece relationship. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Plan Access and the Final Datum
Machine accessible reliefs and mounting features around a recoverable datum scheme. For O1 tool steel milling, identify areas that must remain for grinding after treatment.
| Your decision | What to define |
|---|---|
| Your fit | Locating pin, supporting jaw, mounting faces and workpiece relationship. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Separate Supplied and Working Conditions
Separate the supplied condition from the final working requirement. Agree how jaw geometry and locating fits are accepted after the complete thermal route.
| Your decision | What to define |
|---|---|
| Your fit | Locating pin, supporting jaw, mounting faces and workpiece relationship. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Inspect the Finished Functional Fit
Check mounting location and workpiece support from the final datums. Specify any fit adjustment, surface protection and required inspection records.
| Your decision | What to define |
|---|---|
| Your fit | Locating pin, supporting jaw, mounting faces and workpiece relationship. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Define Your Cold-Work Dies Before Cutting
For your O1 tool steel dies, show the supported working profile, mating punch and intended material being worked. Confirm grade selection against the duty and section.
| Your decision | What to define |
|---|---|
| Your fit | Die profile, clearance, supporting section and locating features. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Plan Access and the Final Datum
Keep the working profile and relief geometry accessible for the agreed finishing process. Review corner radii and tool access before the first cut.
| Your decision | What to define |
|---|---|
| Your fit | Die profile, clearance, supporting section and locating features. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Separate Supplied and Working Conditions
Agree treatment responsibility, final condition and stock remaining on controlled features. Oil hardening does not remove the need to review dimensional movement.
| Your decision | What to define |
|---|---|
| Your fit | Die profile, clearance, supporting section and locating features. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Inspect the Finished Functional Fit
Inspect the working profile and locating geometry after the full route. State the edge acceptance, material identity and records needed for release.
| Your decision | What to define |
|---|---|
| Your fit | Die profile, clearance, supporting section and locating features. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Define Your Guides & Bushings Before Cutting
For your O1 guide bushing or locating pin, identify bore fit, supported length and the sliding or locating interface. Connect the final geometry to the required working state.
| Your decision | What to define |
|---|---|
| Your fit | Bore fit, locating land, mounting shoulder and supported wall. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Plan Access and the Final Datum
Plan O1 tool steel turning and boring around stable workholding and accessible finishing surfaces. Separate rough dimensions from the final locating fit.
| Your decision | What to define |
|---|---|
| Your fit | Bore fit, locating land, mounting shoulder and supported wall. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Separate Supplied and Working Conditions
Agree the thermal route and subsequent finishing before closing the bore and locating diameter. Define remaining stock for the actual section and tolerance.
| Your decision | What to define |
|---|---|
| Your fit | Bore fit, locating land, mounting shoulder and supported wall. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Inspect the Finished Functional Fit
Inspect the finished bore, locating land and shoulder relationship. Specify the measurement state and protection during shipment.
| Your decision | What to define |
|---|---|
| Your fit | Bore fit, locating land, mounting shoulder and supported wall. |
| Your process | Initial machining, specified treatment and final finishing. |
| Your approval | Controlled drawing, final condition and receiving evidence. |
Resolve 6 Risks Before Releasing Your O1 Drawing
Connect O1 tool steel heat treatment to finishing and inspection before approving the first production route.
Resolve O1 Tool Steel Annealed vs Hardened
Confirm the actual supplied condition, stock form and product specification. O1 tool steel machinability and the planned operations depend on that starting state.
01 · Requirement
Show the controlled feature and final state.
02 · Allowance
Agree remaining stock for the actual route.
03 · Evidence
Verify the finished fit and specified condition.
Rough machineTreat if specifiedFinishInspect
Keep Your Locating Scheme Recoverable
Define the measuring or locating faces, mounting threads and bore relationships. Keep access for inspection and final finishing after the specified thermal route.
01 · Requirement
Show the controlled feature and final state.
02 · Allowance
Agree remaining stock for the actual route.
03 · Evidence
Verify the finished fit and specified condition.
Rough machineTreat if specifiedFinishInspect
Plan for O1 Tool Steel Heat Treatment Distortion
Review section, shape, uneven material removal and treatment responsibility before release. Agree remaining stock and final datum recovery; do not describe oil-hardening steel as zero-distortion.
01 · Requirement
Show the controlled feature and final state.
02 · Allowance
Agree remaining stock for the actual route.
03 · Evidence
Verify the finished fit and specified condition.
Rough machineTreat if specifiedFinishInspect
Support the Working and Locating Features
Identify thin webs, shoulder transitions and unsupported working areas. Relate the edge or gauge feature to the actual load and required final geometry.
01 · Requirement
Show the controlled feature and final state.
02 · Allowance
Agree remaining stock for the actual route.
03 · Evidence
Verify the finished fit and specified condition.
Rough machineTreat if specifiedFinishInspect
Review Protection Without Changing Your Fit
State which ground faces, bores and locating lands must remain functional. Review coating compatibility against the required material condition rather than assuming every finish is suitable.
01 · Requirement
Show the controlled feature and final state.
02 · Allowance
Agree remaining stock for the actual route.
03 · Evidence
Verify the finished fit and specified condition.
Rough machineTreat if specifiedFinishInspect
Accept the Gauge or Fixture in Its Final State
O1 tool steel machining tolerances belong to the drawing and agreed manufacturing route. Define inspection conditions and whether any calibration scope is required.
01 · Requirement
Show the controlled feature and final state.
02 · Allowance
Agree remaining stock for the actual route.
03 · Evidence
Verify the finished fit and specified condition.
Rough machineTreat if specifiedFinishInspect
Verify Your O1 Tooling at 3 Stages
01 · Incoming O1
Identity, stock form and supplied condition.
02 · Specified treatment
Working condition and remaining finish stock.
03 · Finished part
Functional features, protection and records.
Confirm Your Delivered Tooling Stock
Check O1 identity, product form, supplied condition and agreed lot documentation before preparing the machining route.
- Specified O1 product and condition.
- Final working geometry and locating fits.
- Agreed treatment, finish and inspection records.
Sampling and document scope are agreed with your quotation.
Quality Assurance →
Review the Sample Through the Complete Route
Check remaining stock and reference faces before treatment, then review the specified finishing and final measurement plan.
- Specified O1 product and condition.
- Final working geometry and locating fits.
- Agreed treatment, finish and inspection records.
Sampling and document scope are agreed with your quotation.
Quality Assurance →
Verify the Features Your Assembly Uses
Inspect the final gauge profile, supporting surfaces, guide bore or locating diameter from the agreed datum scheme. Separate dimensional verification from calibration scope.
- Specified O1 product and condition.
- Final working geometry and locating fits.
- Agreed treatment, finish and inspection records.
Sampling and document scope are agreed with your quotation.
Quality Assurance →
Protect Ground Datums and Receiving Evidence
Agree part identification, working-face protection, packaging and the material or inspection documents your receiving team needs.
- Specified O1 product and condition.
- Final working geometry and locating fits.
- Agreed treatment, finish and inspection records.
Sampling and document scope are agreed with your quotation.
Quality Assurance →
Agree Your Working Surface
Illustrative appearance samples. Protection, treatment compatibility, masking and manufacturing scope require project review. A visual sample is not a process specification.
Surface Finishing →O1 vs A2: Define Your Decision
| Compare | What your drawing must resolve |
|---|---|
| O1 vs A2 tool steel | Abrasive wear, impact, working-edge support and the finishing route. |
| Working-edge support | Review chipping risk, local impact, section and the final profile before approving the grade. |
| European comparison | 1.2510 / 100MnCrW4 is a review reference; confirm the product standard and supplied state. |
Confirm an alternative before purchase. Do not assume that similar names or higher alloy content approve a replacement.
From O1 Stock to Your Finished Fit
O1 tool steel machinability depends on the actual condition, geometry and operation. Agree the route for your drawing; a generic cutting-speed table is not a production plan.
Precision Grinding
Define O1 tool steel grinding allowance and final measurement state.
Explore Precision Grinding →
Wire EDM
For O1 tool steel wire EDM review, identify through profiles and final surface requirements.
Explore Wire EDM →
Coordinate Your Drawing and Receiving Requirements
Connect China manufacturing with Dallas-area coordination for your drawing review, sample decisions and delivery requirements.
6 Inputs for Your O1 Quote
01CAD and controlled drawing
02O1 product specification and stock form
03Supplied condition and treatment responsibility
04Trial and repeat quantities
05Final fits, allowance and surface requirements
06Inspection records and delivery needs
Answers Before You Specify O1
How should I plan O1 tool steel heat treatment distortion?
Review the actual section, geometry, roughing pattern and treatment route with the responsible provider. Define finishing stock and recoverable datums before hardening. Dimensional-stability language is not a guarantee of zero movement.
What changes for O1 tool steel annealed vs hardened?
The supplied condition changes your machining and finishing plan. Confirm it before programming, then specify the required final state, remaining stock and inspection after all agreed operations.
What O1 tool steel hardness should I specify?
State the working requirement, test method and locations for the actual part and duty. Supplied stock condition and final hardness are separate decisions; do not assume one value for every section or application.
Does O1 tool steel rust?
Review corrosion exposure, storage and handling protection. Specify cleaning, any protective finish and the ground faces or fits that must remain functional. Do not treat O1 as a stainless material specification.
Can O1 tool steel be welded?
Treat repair or joining as a separate engineering review. Identify the steel, existing condition, section and required final properties, then agree a suitable procedure and final acceptance before repair.
Does an O1 gauge blank include calibration?
Define the required scope in your inquiry. Manufacturing and dimensional inspection of a gauge blank do not by themselves establish a calibrated measuring instrument. Agree the method, environment, records and any external calibration responsibility.
Can I apply any coating to O1 tooling?
Review the proposed process against the actual final condition and operating requirements. Producer guidance limits some advanced-coating routes for this material; confirm compatibility and final fits before approval.
How much does O1 tool steel machining cost?
For your O1 tool steel machining quote, send CAD, the controlled drawing, quantities, supplied state, treatment responsibility, final fit, finishing and inspection requirements. Include any separate gauge verification or calibration scope.
