Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | High Carbon Bearing Steel (GCr15) |
| Hardness | HRC 60-64 |
| Inner Diameter Range | 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm |
| Outer Diameter Tolerance | ±0.01 mm |
| Surface Finish | Precision Polished |
| Heat Treatment | Quenched and Tempered |
| Primary Application | Drill Jigs, Fixtures, and Die Guides |
| Package Quantity | 10 Pieces per Set |
| Country of Origin | Manufactured in ISO 9001 Facility |
| Approximate Weight | 50 grams per piece |
Anonymous
Apr 15, 2026
Rating: 4/5
Good Value
Great product overall. One sleeve was slightly tight on the outer diameter but still usable after honing.
Anonymous
Mar 16, 2026
Rating: 5/5
High Quality Steel
You can tell the material is genuine bearing steel. Hardness seems accurate based on my file test.
Anonymous
Feb 28, 2026
Rating: 5/5
Precision Tooling
Exactly what I needed for my CNC fixture project. Inner diameters are true to size.
Anonymous
Feb 16, 2026
Rating: 5/5
Durable and Reliable
Withstand high pressure drilling without deforming. Will purchase again for future projects.
Anonymous
Feb 16, 2026
Rating: 5/5
Perfect Fit for My Jig
These sleeves fit perfectly into my drill jig setup. The precision is exactly what I needed for repeatable holes.
Q: What is the outer diameter for the 5mm sleeve?
A: The outer diameter varies by specific model. Please refer to the detailed dimension chart in the product images.
Q: Are these sleeves hardened throughout?
A: Yes, all sleeves undergo through-hardening heat treatment to ensure consistent durability.
Q: Can I order a custom inner diameter of 11mm?
A: Currently, we only stock standard sizes ranging from 3mm to 10mm as listed in the description.
Q: Are these suitable for CNC machining fixtures?
A: Yes, they are designed for precision applications including CNC fixtures and drill guides.
Q: Do you offer bulk pricing for over 50 sets?
A: Yes, please contact our sales team directly for volume discount inquiries on large orders.
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