Osborn Straight HSS Long Drill 5 7/8 7 11 13 15/16 23 25 27 29 31/32 47 49 55/64 S$ 10.93 to S$ 55.10
IRWIN reduced shank HSS Long Drill bit OL 6"; 13/32 27/64 29/64 15/32 31/64 1/2" S$ 11.24 to S$ 13.48