MEIGGTOOL 5 pcs Titanium Step Drill Bits Set and Automatic Center Punch Multiple Hole 50 Sizes High Speed Step Drill Bit Set with Aluminum Case

Description: High speed steel for longer service life; 3-sided shank prevents slip in drill chuck; Double cutting blades design enables a faster and smoother cutting; Cobalt added reduces friction and lasts longer than those which does not contain cobalt bits; The sharpness and titanium coating ensure easily cut through most sheet metal, plastic and some other materials with ease. Specification: Size: 3/16''-7/8'' Steps (3/16'',1/4'',5/16'',3/8'',7/16'',1/2'',9/16'',5/8'',11/16'',3/4'',13/16'',7/8'') 1/8''-1/2'' Steps (1/8'',5/32'',3/16'',7/32'',1/4'',9/32'',5/16'',11/32'',3/8'',13/32'',7/16'',15/32'',1/2'') 1/4''-1-3/8 '' Steps (1/4'',3/8'',1/2'',5/8'',3/4'',7/8'',1'',1-1/8'',1-1/4'',1-3/8'') 1/4''-3/4'' Steps (1/4'',5/16'',3/8'',7/16'',1/2'',9/16'',5/8'',11/16'',3/4'') 3/16''-1/2'' Steps (3/16'',1/4'',5/16'',3/8'',7/16'',1/2'') Package Included: 5 x Step Drill Bits