Key Features
- Precision-ground square shanks for secure clamping in standard tool posts
- Made from hardened alloy steel for superior strength and durability
- Available in multiple size combinations to suit diverse boring applications
- Compatible with standard HSS, cobalt, and carbide tool bits
- Plain design allows for custom tool bit grinds as required
- Corrosion-resistant finish for long-term storage aboard ship
- Suitable for vertical boring mills, lathes, and other machine tools
Technical Specifications
| Size | Shank Width (in) | Boring Bar Diameter (in) | Overall Length (in) | Material |
|---|---|---|---|---|
| 1/2" | 0.500 | 0.375 | 6.0 | Hardened Alloy Steel |
| 5/8" | 0.625 | 0.500 | 8.0 | Hardened Alloy Steel |
| 3/4" | 0.750 | 0.625 | 10.0 | Hardened Alloy Steel |
| 1" | 1.000 | 0.750 | 12.0 | Hardened Alloy Steel |
| Hardness: 58-62 HRC | Finish: Corrosion-resistant | ||||
Frequently Asked Questions
What is a plain boring bar used for?
A plain boring bar holds a cutting tool bit to enlarge or finish the interior of an existing hole. It is commonly used on lathes and boring mills for marine engine maintenance, shaft alignment, and precision machining of components such as bearing housings and valve seats.
What type of tool bits are compatible with these boring bars?
These bars are designed to accept standard square tool bits, including HSS, cobalt, and carbide inserts (when used with appropriate tool holders). The tool bit is secured with a set screw and can be ground to the required geometry for boring, threading, or grooving operations.
Are these boring bars suitable for use on board ships?
Yes, they are made from corrosion-resistant hardened alloy steel, making them suitable for shipboard workshops and offshore environments. They are also compact and easy to store in marine tool lockers.
What sizes are available?
Typical shank widths range from 1/2 inch to 1 inch, with boring bar diameters from 3/8 inch to 3/4 inch and lengths from 6 to 12 inches. Custom sizes can be sourced upon request.
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