Models View all 3/4" - 1/4" Cord Grip 3 32 0 5/16 x 3-1/2" Quick Release Pin 7 46 0 8-32 Brass Heat Set Insert 3 28 0 1/4" - 1-3/8" Step Drill 7 42 0 1/8" - 1/2" Step Drill 5 23 0 100 Degree 3 Flute Countersink 2 29 0