well the crack goes the whole way thru...it is on a non relieved set of k frame diamond targets...it is about 1.5 to 2" long and my worry is that it will spread...i have heard that a syringe with glue would be a good choice...i plan on a full refinish of these and do not want to wedge anything other than the syringe needle to get the glue where it needs to go....i thought of using super glue but i know with wood it does not work the best..i was hoping to find a good solution to use a good glue like titebond 2 which i use for most of my wood projects...i am not sure what size needle would be most beneficial to use for any glue..God Bless,John