Roll-forged and edge-ground high carbon steel lip and spur drill bits for wood, composites and plastics, supplied in a handy, soft-grip storage case. Compatible with all 13mm 3-jaw chucks. Includes 3 x 3, 2 x 3.5, 2 x 4, 1 x 4.5, 5, 5.5, 6, 6.5, 7, 8 and 10mm. Roll-forged and edge-ground high carbon steel lip and spur drill bits for wood, composites and plastics, supplied in a handy, soft-grip storage case. Compatible with all 13mm 3-jaw chucks. Includes 3 x 3, 2 x 3.5, 2 x 4, 1 x 4.5, 5, 5.5, 6, 6.5, 7, 8 and 10mm.