Special Stubby Left Handed Set. Specially designed for automotive use to allow for use in restricted areas where conventional drills will not fit. Long Lasting HSS/Cobalt Material. High Strength HSS Cobalt Material for long lasting use. 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10mm. Perfect for workshops and areas where the room is limited.