This jig is used for splicing hammer shanks by trimming both parts of the splice with a clean cut, at a slanted angle that maximizes gluing surface area.
Typically, this type of jig is more often used for upright shanks, but we've shaped the opening on one end of the jig to allow grand shanks to be inserted further to allow a cut that is closer to the knuckle. Also, the hammer end of the jig is notched to allow the hammer end to be inserted as far as possible, enabling a splice cut that is as close to the molding as possible, which increases the chance that this type of splice can be used for repairing a broken shank.
Notes on using this jig:
- For best results, use a Japanese Pull Saw with crosscut teeth in the range of 15 to 30 TPI. Some pull saws are designed for faster cutting, and will not cut as cleanly. Our Hobby Razor Saw may be a good solution if you need maximum portability for your mobile repair kit, but will require more effort to cut through the shank.
- The jig will be easier to use if the base of it is clamped to a work surface or bench, making it easier to let the saw do the work. Holding the jig by hand will make it more of a challenge, but if you are in the field, you may not have an option. In either case, be patient and let the saw blade do the work - don't force it.
- Be sure to tighten the thumb screw securely on the portion of the shank you are cutting. The end of the thumb screw may leave a slight indentation in the side of the shank, but it is necessary to clamp the shank securely. Before cutting, try twisting and pulling the shank to make sure it will not slip.