Champion 1In X 2In X 9G Ht Flat Steel Washer 25Pk Bulk Packs Imperial Gravity Paint Filters Useful for both alignment and Useful for both alignment and for measurement purposes Mitutoyo proprietary new design permits smooth pointer operation Flat crystal makes graduations easy to read Strong frame provides excellent rigidity and durability Non magnetic pointer and contact point permit reliable operation even in magnetic environments Clear and concise wide dial face allows excellent visibility The surface of the crystal is hard coated for excellent scratch resistance O ring protection guarding against oil and water penetration Champion M10 x 1 Champion 1in x 2in x 9G HT Flat Steel Washer 25pk