Fret an entire bolt-on neck, or most of an acoustic neck, FAST! "My favorite fretting tool." — Dan Erlewine
Jaws was developed by our own Dan Erlewine, a master teacher of fretting techniques. It gives you finer control over the pressure needed to seat a fret into the slot — you can actually feel it seating! It eliminates complicated clamping setups, so your press-in fret jobs go faster. Original Jaws utilizes the same 2-1/2" radius brass inserts as our other Jaws tools.
See details below
Read these instructions before starting. This is a two-handed operation, and it's easier to read this now than it will be when you're using the tool!
First, practice on scrap Jaws has the strength to press a fret down into the fingerboard surface, so don't overtighten! The idea is to gently squeeze the fret in without clamping it. (See below for separate instructions on using Jaws as a clamp.)
Get a feel for the tool by gripping and releasing a board, or the edge of your benchtop. The action is two-handed: one hand turns the thumbwheel while the other hand is opening and closing the tool.
If you've never fretted an instrument, you'll need to know the traditional hammer method before using a professional tool like Jaws. Hammering is still needed for installing frets on the fingerboard over the body.
Choose a caul that matches the fingerboard curve
Step 1: Clamp loosely
To start, try the top hinge position (the most commonly used setting). Place the cradle under the neck, and position the tool so the caul will come down next to the fret, not on top of the fret. Slowly squeeze the tool closed while also turning the thumbwheel. With the tool fully closed, the caul should almost touch the fingerboard, but not quite. Use a very light touch, so that you don't make caul marks on the fingerboard. Placing a business card on the fingerboard is helpful at first: this prevents caul marks, and the thickness of the card sets the proper gap between the caul and the fingerboard. With the jaws loosely closed over the fingerboard, you're in the correct range for clamping.
Step 2: Move onto the fret Open Jaws enough to move the caul onto the fret. Adjust the thumbwheel to get a loose fit so the tool won't lock as you press the fret in.
Step 3: Press the fret in Squeeze the fret into the slot gradually, relaxing your grip momentarily to adjust the jaw opening with the thumb-wheel. You will feel the fret ease into the slot and become seated. Stop clamping as soon as the fret is seated. There's no need to close the tool until it locks — you'll have the best feel for seating a fret by relying on hand pressure only.
Using Jaws as a clamp If you choose to use glue under a fret, Jaws will clamp the fret while the glue dries. Adjust the tool so that it barely touches the fret when closed and locked. Now open up and use the thumbwheel to close the jaws down just a little bit, then clamp the fret. This requires very little pressure: just enough to hold the fret down without coming loose. Too much pressure would clamp the fret deeper than intended. Tip: Slightly bevel the fret slot A slight bevel on the fret slot edges helps the fret tang into the slot. One pass with a fine file will do it. Press the fret with your fingertip, and it will stand upright in the beveled slot.
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Tip: Slightly bevel the fret slot
