5X HSS Cobalt Multiple Hole Cut 50 Sizes Step Drill Bit Set Kit w/ Aluminum Case

5X HSS Cobalt Multiple Hole Cut 50 Sizes Step Drill Bit Set Kit w/ Aluminum Case 5X High Strength Steel Cobalt 50 Sizes Step Drill Bit Set w/ Aluminum Case   Features This unique drill set will replace 50 individual drill bits. The two-flute design gives you faster, smoother cutting 3-sided (TRI-FLAT) shank will not slip in your drill's chuck Self staring - No need for a pilot hole Cobalt coated to reduce friction and run cooler The large bit has a 3-sided shank and small bits have hex shank to prevent slipping in drill chuck Automatically deburrs holes as you drill Long Life high-speed steel   Specifications Dimensions Case: 15 x 10.Three (3) 4cm/5.85 x Four (4) 1.56''(Approx) Weight: 15.5 oz Bits #1: 3/16" to 1/2" 6 Steps (3/16'', 1/4'', 5/16", 3/8'', 7/16'', 1/2'') #2: 1/8" to 1/2" 13 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'') #3: 1/4" to 3/4'' 9 Steps (1/4'', 5/16", 3/8