The Blue Spot Tools 5 PCE 1/2" Spline Bit Set (M10-M18) (EVA FOAM) is manufactured from chrome vanadium for increased durability and strength. The set includes the most widely used spline sizes and is ideal for removing and applying spline fittings. The set is heat-treated, hardened, tempered and fully polished. The knurled sockets provide a secure grip.
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