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Cobalt Step Drill Bit Set, Hex Shank Step Drill Bit with Automatic Center Punch for Metal, Stainless Steel, Aluminum, Wood, and Plastic, Storage in Aluminum Case for DIY Lovers, 50 Sizes

4.5 (5) Write Review
Free shipping on orders over $29.99

$78.67

$ 33 .11 $33.11

In Stock

1.Style:6pcs


About this item

  • M35 Material: Our M35 cobalt step drill bits, fortified with a titanium coating that makes the drill bit harder than a typical HSS bit, can reduce the friction drill, and perform well in heat, corrosion, and rust resistance.
  • Spiral flute design: The spiral flute design prevents metal chips from flying and removes chips faster, allowing for smoother drilling without overheating. Promotes cleaner, more precise drilling operations.
  • Wide application: Our step drill bits can process holes of different diameters and can be used in heavy metal, iron, aluminum, brass, plastic, aluminum alloy, wood, plastic, etc., and can also be easily and securely installed into all power tools.
  • Size: Hex shank step drill sizes include 1/4-1-3/8, 3/16-7/8, 1/4-3/4, 1/8-1/2, 3/16-1/2 , with popular sizes needed for daily use, it can basically meet the needs in life and has greater convenience.
  • After-Sales Service: The Aluminum storage box for stepped drill bit is sturdy and easier to carry and store. If you are not fully satisfied with our product for any reason, please contact us.


Specification: Product name: AIMLENTOOL Cobalt Step Drill Bit Set Brand:AIMLENTOOL Number: 6pcs Size Contents: Package includes Hex shank step drill sizes include 1/4-1-3/8, 3/16-7/8, 1/4-3/4, 1/8-1/2, 3/16-1/2 , with popular sizes needed for daily use, it can basically meet the needs in life and has greater convenience. Features: Our M35 cobalt step drill bits, fortified with a titanium coating that makes the drill bit harder than a typical HSS bit, can reduce the friction drill, and perform well in heat, corrosion, and rust resistance. Storage: Supplied in a aluminum outer box for easy storage and transportation. After-Service Guarantee: If you have any questions, please feel free to contact us, and our customer service staff will reply you within 24 hours.


Bruce Codagnone
March 27, 2025
Works perfectly, very sharp
T. Tozawa
March 26, 2025
I’ve used these to drill out some holes on a thicker plastic piece and they worked great. Feels durable and are great tools to have if you like DIYing stuff.
Customer
February 26, 2025
Almost work prefect to finish my job. Need more sharpping.
Malachi
December 13, 2024
These aren't super heavy duty but for the price you can't go wrong. Seller refunded me well out of the return window after the largest one of these broke. I tried reordering and Amazon lost the shipment. A+ to the seller and their customer service. The bits themselves seem to work pretty well if your not too hard on them. I used them for some copper buss bars and some aluminum Diamond plate and they seemed to go through the thinner metals pretty fast. Overall I'm happy with them for the price and would purchase again.
Willy Bill
October 23, 2024
Just what I needed to finish a job.
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