Great Made in the USA product!
Was looking for 40 taper tool holder that could be stored in a cabinet away from dirt and debris and moved to a machine when needed.  With a (10) tools capacity they were light enough to easily carry.  They're low price allowed creating trays with tooling dedicated to individual products.<br /><br />Holes are 3" center to center.  My 3.5" face mill needed some care to make sure the tool holders around it were below its height and their tooling was &lt;2"OD.  Further apart would have prevent the need for this but then would have wasted a lot of space with regular size holders and tooling.<br /><br />The plastic is stuff and sturdy.  Fully loaded there is no "bounce" in the tray.  I haven't had it long enough though to experience its durability.
Rating: 5 stars