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[ATTACH]23895[/ATTACH]

This is factory bushings vs TBC bushings. You can see the difference. The TBC bushing is a close fit and a tight fit with little room which makes it more precise. They are also LONGER inside the tube which adds support.

[ATTACH]23899[/ATTACH]
The problem with mandrel holes in the bushings is this. There is a reduced surface area for the live/dead center to grip. In many cases this may not be a problem but it COULD be a problem for some turnings.

[ATTACH]23900[/ATTACH]
TBC also allows slimline turning without a mandrel. The top set is for a Gent Jr while the bottom set is for a slimline.

[QUOTE="EStreet, post: 228525, member: 812"] [ATTACH]23895._xfImport[/ATTACH] This is factory bushings vs TBC bushings. You can see the difference. The TBC bushing is a close fit and a tight fit with little room which makes it more precise. They are also LONGER inside the tube which adds support. [ATTACH]23899._xfImport[/ATTACH] The problem with mandrel holes in the bushings is this. There is a reduced surface area for the live/dead center to grip. In many cases this may not be a problem but it COULD be a problem for some turnings. [ATTACH]23900._xfImport[/ATTACH] TBC also allows slimline turning without a mandrel. The top set is for a Gent Jr while the bottom set is for a slimline. [/QUOTE]

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