5 Pieces HSS Cobalt Multiple Hole 50 Sizes Step Drill Bit Set + Aluminum Case

Features
- This set replaces 50 individual drill bits. Two-flute design gives you faster, smoother . 3-sided (TRI-FLAT) shank will not slip in your drill's chuck. Cobalt coated for smoother cooler .
- SELF STARTING, no need for a hole
- Cobalt coated to reduce friction and run cooler
- Large bit has 3-sided shank and small bits have shank to prevent slip in drill chuck
- Automatically deburrs holes as you drill
- Made by long life high speed steel
- Includes protective padded aluminum case

Specfifications
- Package Size:15cm*10.5cm*4.2cm(L*W*H)
- Weight:450g

Sizes:
#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", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4")
#4: 1/4" to 1-3/8"' 10 Steps (1/4'', 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8")
#5: 3/16" to 7/8" 12 Steps (1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8")

Package included:
1 x 1/4-1-3/8 Drill Bit
1 x 3/16-7/8 Drill Bit
1 x 1/4-3/4 Drill Bit
1 x 1/8-1/2 Drill Bit
1 x 3/16-1/2 Drill Bit
1 x Aluminum Box













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