(1) 45 degree & 90 degree hss step drills

(2) Shank: (a) Round shank; (b) Hex shank; (c) Three flat shank; (d) Hex quick change shank;

(3) Surface: (a) white bright; (b) Titanium coated; (c) Black nitrided; (d) Cobalt coated;

(4) Metric size individual step drills:
4 - 12mm x 5 step
4 - 12mm x 9 step
4 - 20mm x 9 step
4 - 22mm x 10 step
4 - 30mm x 14 step
4 - 39mm x 14 step
5 - 35mm x 13 step
6 - 18mm x 7 step
6 - 20mm x 8 step
6 - 24mm x 10 step
6 - 30mm x 13 step
6 - 32mm x 8 step
14 - 24mm x 6 step
14 - 25mm x 7 step
20 - 34mm x 8 step
10 - 20mm x 11 step
20 - 30mm x 11 step

(5) Inch size individual step drills
3/16 - 1/2 x 6 step
1/8 - 1/2 x 13 step
1/4 - 3/4 x 9 step
3/16 - 7/8 x 12 step
7/16 - 1-1/8 x 12 step
1/4 - 1-1/2 x 11 step
1/2 - 1 x 9 step
9/16 - 1 x 8 step
3/4 - 1-3/8 x 11 step
13/16 - 1-3/8 x 10 step

(6) 3pcs inches hss step drills set:
3/16 - 1/2 x 6 step
1/8 - 1/2 x 13 step
1/4 - 3/4 x 9 step
Packing: (a) wooden box; (b) aluminum case; (c) blister with card;

(7) 3pcs metric hss step drills set
4 - 12mm x 9 step
4 - 20mm x 9 step
4 - 30mm x 14 step x 3 pcs/set
Packing: (a) wooden box; (b) aluminum case; (c) blister with card;

4 - 12mm x 9 step
6 - 20mm x 8 step
6 - 30mm x 13 step x 3 pcs/set
Packing: (a) wooden box; (b) aluminum case; (c) blister with card;