3849b6c8__and_Decker_Drill____GICL_Wiki__Reason_for_Material_Selection
[Part Name] Level [Quantity] 1 [Description] It is clear plastic with inner green liquid [Function] It allows for even drilling [Material] Plastic and alcohol [Reason for Appearance] Easy to see, visually attractive [Manufacturing Process] Injection Molding, [Reason for Material Selection] 
It is inexpensive and visually enhancing
Difference between revisions of "Group 12 - Black and Decker Drill" - GICL Wiki