Join Date: Jan 2011
Location: Jacksonville, NC
Berea A mandrel 0.247 and B mandrel is 0.291 list these diameters in catalog could not find at web site anymore. Not sure how old my catalog is, they stop sending yearly.
Assume Berea resellers the same, although price of mandrels change.
Woodcraft & Rockler once sold Berea kits exclusively, that might not be true today.
Depends upon franchisee as to what kits they sell.
Had to go back to 2004 post over at IAP to find these diameters, not sure if information still correct.
Craft Supplies 0.246 not in catalog or web site. They tell you do not guarantee their bushing or mandrel compatible with other vendors. Penn State .243 not in catalog or web site. Their mandrel saver tailstock center will fit any mandrel less than 0.245 or smaller.
Guys that use collet chuck often use ľ” D- drill rod as mandrels.
Yes, are talking thousands of an inch. You want bushings to fit snuggly on the mandrel, without forcing them onto the mandrel. Loose bushings on a mandrel will lead to problems like Out Of Round pen barrels.
Who makes the kits you buy does make a difference, also where you buy kits. Just about every vendor list 7mm mandrel only Berea uses the A & B mandrels at web-site they also us 7mm, but there is that silly thousands of a mm difference.
Do inspect you order when first get it. While never measure inside diameter of bushing do test fit on mandrel regardless if buying from Berea, CSUA, or PSI. Like many other turners do not use a mandrel anymore. I always measure outside diameter of bushings to insure have them oriented correctly. I always measure components so do not over or under turn pen barrels.
Last edited by wildwood; 05-04-2011 at 05:46 PM.