PROTO® SATIN COMBINATION WRENCH 9/16″ – 12 POINT SATIN FINISH PROVIDES CORROSION RESISTANCE AND A SLIP RESISTANT GRIP. 12 POINT BOX END ALLOWS FOR FINE INDEXING, HELPING TO IMPROVE SPEED AND ACCESS. FITS 4, 6 AND 12 POINT FASTENERS. ANTI-SLIP DESIGN (ASD) OPEN END. FRACTIONAL SIZES 11/32″ AND SMALLER AND SIZES 1-5/16″ AND LARGER DO NOT HAVE THE ASD FEATURE. BOX ENDS INCORPORATE THE TORQUEPLUSTM SYSTEM.