Material responsibility
K-O can source raw bar or process customer-owned material. Identify the grade, incoming condition, quantity, available certifications, and ownership. Agree on material identification and lot traceability before delivery.
Bar grinding
Specify precision-ground bar with confidence
Diameter is one part of a ground-bar specification. Give equal attention to length, straightness, surface finish, material, and the way the bar will be inspected and used. Put those requirements together before comparing suppliers.
Use the capability range as a starting point.
K-O's stated bar-grinding capabilities are listed below. Review the required combination of material, diameter, length, tolerance, straightness, and finish for your application; the table does not define one universal specification for every bar.
| Characteristic | Stated capability | Include in your specification |
|---|---|---|
| Diameter | 0.032–7 in | Finished diameter and material grade. |
| Diameter tolerance | To ±0.0001 in | The required limits and measurement criteria. |
| Bar length | 3–24 ft | Supplied and finished lengths, including end requirements. |
| Straightness | 0.004 in/ft TIR | Applicable length, support, and inspection method. |
| Surface finish | To 6 µin RMS | Finish metric, units, and acceptance method. |
Surface finish is stated in microinches RMS. If your drawing specifies Ra or another measure, include it as written and we will review the requirement with you.
Define the material and the next operation.
Connected operations
Include chamfers, machined features, plating, finishing, and heat-treatment requirements in the review. Identify which dimensions and finish requirements apply to the delivered condition.
Acceptance and handling
Specify required inspection records, material certifications, labeling, packaging, and receiving constraints. Share how the bar enters your next process so handling and delivery details can be considered with its dimensional requirements.