CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case

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Specifications Item Type: Step Drill Size: #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")" Features 1. Cobalt added reduces friction and lasts longer than those which does not contain cobalt bits. 2. High speed steel for longer service life. 3. Double cutting blades design enables a faster and smoother cutting. 4. Automatically deburrs holes while drilling 5. 3-sided shank prevents slip in drill chuck 6. Includes a protective aluminum case to make the drills not easy to dull. 7. The sharpness and titanium coating ensure easily cut through most sheet metal, plastic and of course wood and some other materials with ease. Package 5x Step Drill Bit Set 1x Aluminum Case.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits).
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits).
Please mark the spot that you are to drill for easier drilling and improved drill bits life.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits).
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits).
Please mark the spot that you are to drill for easier drilling and improved drill bits life.
All the bits come in a well-organized case for easy transport and storage.