Sizes: M4 ' M5 ' M6 x 1/4"D x 35mm long, M8 ' M10 ' M12 x 3/8"D x 48mm long, M14 ' M16 x 1/2"D x 55mm long. Laser 3266 Spline Bit Set. A handy Spline Bit Set on rail from M4-M16 in 3 drive sizes. 27 YEARS EXPERIANCE IN THE TRADE SHARED WITH YOU.
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