3/8 Inch Drive Triple Square Impact Bit Socket Set with Rail, 8-Piece (M4-M12) BoltsandNuts.com Left hand jobber drill bits

Left hand jobber drill bits are for general purpose construction

and three have a 1/4 inch shaft diameter

Size 1/2"-13

Shank Size: C

335 Pieces - M6 & M8 Coarse

3/8 Inch Drive Triple Square Impact Bit Socket Set with Rail, 8-Piece (M4-M12) BoltsandNuts.com Left hand jobber drill bitsPrecise Triple Square Geometry The triple square (also called XZN) tip is machined to precise tolerances Optimal Two Piece Design We use separate steel alloys and processes for the bit and socket, resulting in a higher performing tool than one piece designs Permanent Connection The bit is pressed directly into the socket for a permanent connection that won't loosen over time or under stress Two Size Markings The size is marked with a high visibility