- TAPPERING JIG -

Hardware list :


1 - Standard T-track bolt 2 1/2" long
1 - Washer to fit T-track bolt
1 - Knob for T-track bolt
4 - Standard woodscrews
1 - 1" Butt hinge w/attachment screws

​For this jig I used a standard two by four for the main body cut down to thirty one inches in length. Once the board was cut to length it required three cuts, two cuts I to both the left and right edges of the board removing just enough stock to make the board square and the last cut was to cut out a one inch wide section shown to the left.

​In one end of the one inch wide piece of stock I cut a notch 3/4 of an inch wide by 1/2 an inch deep for a stop.

​I cut a piece of Oak to two inches in length and half of an inch in width installing it into the notch created in step two with glue and two standard wood screws.

​In the two inch wide halve I drilled a hole at 8 3/4 of an inch from one end to except a t-track bold, this is for part of the adjustment hardware. To the bottom side of this hole I created a recessed area so the head of the t-track bolt would be recessed and this is shown in the video. With this completed I created a mortise to except the handle for this jig. But you could attach a handle to this jig in many different ways even something as simple as just using screws, a mortise and tenon is not your only option it is the way I choose.   

​For the adjustment armature of this jig I used 1/4" thick Oak, using my router table I created a slot that measures 5 3/4 of an inch in length and wide enough for the t-track bolt to fit after I created the slot I was able to cut it to size 7 inches in length and 1 inch in width. Then I predrilled and counter sinking a hole at one end that will be used to attach it. I did round over the ends of this armature. 

​At this point I was ready to install the butt hinge as shown to the right, connecting the one inch wide halve to the two inch wide half creating main body of the jig.

​The adjustment armature can be installed at this point. By first installing the T-track bolt, then placing the armature over the bolt. Armature then gets screwed down to the one inch wide half of the jig at 4 1/2 inches from the end were the stop is located with a woodscrew into a predrilled hole. This screw should not be tight as to allow the armature to rotate when adjustments are made. After crew is installed, install first a washer then the knob on T-track bolt.

​The last two things to do were for me to install the handle. This I created from a piece of Oak with a tenon that went into the mortise I created in the two inch wide halve of the jig with glue. Then I installed a screw in the stop that is one inch in length, this screw attaches the piece of stock the tapper is being created in to the jig so that it can not jump out of the jig.