GRS 003-651 MicroBlock Short Jaw Kit

A short jaw set lets you drop the grip height of an engraving vise so the work sits closer to the bench and further from the objective. The GRS 003-651 MicroBlock Short Jaw Kit from Glendo GRS reduces the working height of a GRS MicroBlock or GRS MicroBlock XL by 9.5 mm by replacing the standard jaw set. It is a direct drop-in replacement: the short jaws share the same pin holes and thread pattern as the standard MicroBlock jaws, so the swap is straightforward and no modifications are required.

The reduced profile is especially useful when working under a microscope, where gaining even a small amount of vertical clearance can meaningfully improve your line of sight and tool access. The short jaw kit is also well suited for use with the Alexandre Ring Fixture and ID Ring Holder, providing a lower grip position that complements those accessories.

Features

• Reduces GRS MicroBlock or MicroBlock XL height by 9.5 mm
• Same pin holes and thread pattern as standard MicroBlock jaws for a direct replacement fit
• Compatible with the Alexandre Ring Fixture and ID Ring Holder
• Beneficial for microscope users who need additional working clearance
• Includes the thread nut

Compatibility

• GRS MicroBlock
• GRS MicroBlock XL
• Alexandre Ring Fixture
• ID Ring Holder

Notes

What you get:

• Short jaw set
• Thread nut

The short jaws replace the standard MicroBlock jaw set rather than adding to it; the block itself is not included.