GRS 003-651 MicroBlock Short Jaw Kit

Reduce the height of your GRS MicroBlock or GRS MicroBlock XL by 9.5 mm when you replace your jaw set with this lower jaw set.
Same pin holes and threads as standard MicroBlock jaws.  Includes the thread nut.

Great for use with the Alexandre Ring Fixture and ID Ring Holder.  Also useful for microscope users as it can give you a little more working room.