Snap-on Tools USA NEW 42-Piece 1/4 Drive Metric & SAE 12-POINT Shallow & Deep Socket Sets with Magnetic Organizer Trays. 110STMDY = (12-Point Deep). 110TMDY = (12-Point Shallow). 111STMMDY = (12-Point Deep). 110TMMDY= (12-Point Shallow). TMMD5.5 = 5.5mm. STMMD5.5 = 5.5mm.