Key Features
- High-speed steel construction for durability and heat resistance
- Precision ground surfaces for accurate boring alignment
- Suitable for cylinder boring, valve guides, and general machining
- Available in multiple diameters and lengths to suit different bores
- Plain shank design compatible with standard boring heads
- Corrosion-resistant finish for long storage life in marine conditions
- Certified cutting tools, meeting marine workshop quality standards
Technical Specifications
| Specification | Details |
|---|---|
| Material | High-Speed Steel (HSS) |
| Hardness | HRC 62-64 |
| Shank Type | Plain Straight |
| Diameter Range | 6 mm – 50 mm (1/4" – 2") |
| Length Range | 100 mm – 400 mm (4" – 16") |
| Finish | Precision Ground / Bright |
| Application | Boring, Reaming, Internal Turning |
| IMPA Code | 633231 |
| Standards | ISO 9001 Compliant Manufacturing |
Frequently Asked Questions
What are plain boring bars used for on ships?
Plain boring bars are used in marine engineering to enlarge, true, or accurately align existing holes in components such as cylinder liners, piston bore guides, and bearing housings during repair or overhaul. They are critical for maintaining precise clearances in engine and propulsion systems.
Are these boring bars suitable for use with portable boring machines?
Yes, the plain shank design is standardized to fit most portable and stationary boring machine tool holders used in ship repair workshops. The direct insertion and set-screw locking system ensures secure clamping without additional adaptors.
What materials can these boring bars cut?
As HSS tools, these bars can effectively machine steel, cast iron, stainless steel, and non-ferrous alloys commonly found in marine engines and auxiliary equipment. They are ideal for general workshop use and occasional heavy-duty boring operations.
Do you offer custom sizes for special applications?
Yes, we can supply custom diameters, lengths, and special coatings on request for specific vessel maintenance contracts. Please contact ALL-K-MARINE with your requirements for a quote and lead time.
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