|
BORING BAR HOLDER This article shows making two projects - 1. A boring bar holder, designed for use in the four-way tool post of my lathe. Material is mild steel. 2. A boring bar for a carbide insert. The boring bar is 10 mm diameter, approximately 150 mm long, and made from free-cutting steel. |
|
 |
|
 |
Machining the end of boring bar holder. |
 |
Lock the holder in the toolpost and drill a center hole, ------- Reaming to 10 mm after drilling. Ideally the boring bar should be a neat slide fit. |
 |
Slitting the holder with 1 mm saw. |
 |
Machining cutout in boring bar to accept carbide insert. See Article Number 23 for making a rotary table. |
 |
The boring bar and holder performed well during initial test. |
 |
Completed. |
 |
Close-up of the mounted insert and the cutout to accommodate it. |
 |
|