Spline Socket Bit M10 3/8"Sq Drive | SBS008 | Sealey
Capri Tools 10 mm M10 Stubby XZN Triple Square Bit Socket, 3/8-Inch Drive - Walmart.com
Amazon.com: uxcell 1/2" Drive x M10 (10mm) Triple Square Spline Bit Socket, S2 Steel Bits CR-V Sockets 4" Length Use with Ratchet Wrench, Slide Bar, Extension Rod : Tools & Home Improvement
Spline Alternator Combination Bit Socket (M10) - TOPTUL The Mark of Professional Tools