DISTINCT DIAMOND ABRASIVE CUTTING EDGES - The Z-File incorporates rapid-cutting 300-grit diamond abrasives and specially designed angled edges that engage the sides of the fret rather than the tops.
Z-FILE SPEEDS UP YOUR WORK - this fret crowning file shapes both sides of the fret at once - a great choice for busy shops.
A WHOLE NEW IDEA FOR CROWNING FRETS - Z-Files won't mess up your carefully-leveled fret tops because they only touch the sides of the frets.
RUBBER COATED HANDLE - Gives firm, comfortable control for the job.
WON'T CAUSE STRING BUZZ - After you've leveled the frets for uniform height, your crowning file restores their rounded shape, leaving the thinnest possible line of leveled surface on top. This is when other crowning files can accidentally scrape the fret top, creating a buzzing low spot. Z-Files don't have this problem—because they don't touch the top of the fret.