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14mm Ground Joint Reamer - Aluminum Handle - Griffin Glass Tools

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This brass reamer is a 1-10 taper which has been machined to +/- 0.001” This means when you ream a fitting it should be a nice snug joint connection with little effort. This universal reamer size range is just smaller than a 10mm fitting on the small end and just wider than a 19mm fitting at the widest point. Griffin's individually sized joint forming tools have been very popular and have become trusted for their effectiveness and accuracy.

Brass is used instead of graphite for longevity and consistency of the formed joint shape after multiple uses.

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Make custom joints!

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This is an incredible tool! I make joints from home made tubing. No more common clear or colored joints for my domes. I use striped and home made solid color tubing. Blow and shape the tube into a conical shape (approximate the final shape) from vacstack, coil pot, or blown gathers (using a mini plow pipe) then do a semi final shape with this reamer. Final shaping is with a waxed standard 14mm male joint. I put a mark on the reamer to indicate the exact depth I need. Be sure to warm the reamer first. As it is a brass tool it will not wear, very important to ensure correct sizing of your custom joint.