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PRODUCTION PROCESS OF OUR STEP DRILL
1.Material Selection: The first step is to select a material suitable for the step drill. Using High Speed Steel (HSS)
2.Blank preparation: The selected material is obtained in the form of a blank, which is a cylindrical rod with a larger diameter than the final stepped drill bit. Blanks are usually obtained by processes such as forging, extrusion or bar.
3.Grinding and Shaping: The blank is then machined using a grinding operation to obtain the desired shape for the step drill. This involves using a precision grinder to remove excess material and form the flutes, steps and cutting edges of the drill.
4.Heat Treatment and Nitriding: Partially formed step bits are heat treated to increase hardness, strength and durability. The specific heat treatment process can vary depending on the materials used.
5.Finishing operations: After heat treatment and nitriding, step drills undergo final grinding and polishing operations to obtain precise dimensions, smooth surfaces and sharp cutting edges. This ensures the precision and performance of the drill.
6.Quality Control: Throughout the manufacturing process, quality control measures are implemented to ensure that stepped bits meet specified standards and tolerances. This may involve dimensional inspection, hardness testing and visual inspection.
Jason
Reviewed in Canada on March 9, 2025
Good quality foe the price, I'm an electrician and make a lot of holes in steel panels. It grabs mote then an average bit so be careful or will break. Happy with this purchase
anthony kennedy
Reviewed in the United States on March 7, 2025
They cut very well in steel, aluminum, hard metal.Purchased second set. They cut that well
P. Meyer
Reviewed in the United States on March 10, 2025
Nice assortment of sizes and lengths make these pretty versatile. They tend to pull their way into the material so a little care is needed not to over drill the hole. They’re extremely sharp but I’m only cutting plastic.
Farfadet
Reviewed in Canada on March 1, 2025
Good bits to work with less sharp than Milwaukee but will do the job
Pyevhanne In
Reviewed in the United States on February 10, 2025
Very dull. Non of the bits I had was sharp
Mark
Reviewed in the United States on January 31, 2025
Exactly what I was looking for.
Mark g
Reviewed in Canada on August 4, 2024
Work good
Jim Kral
Reviewed in the United States on June 22, 2024
I started drilling out some spot welds on my project truck and at first was very impressed with the bits. Until the first one snapped leaving part of the bit stuck in the quick release collar of a brand new bit extension. Now I have no bit and a useless bit extension. Recommend you look elsewhere for something more durable. Update after writing my original review I was contacted and offered a new set, The company clearly wants its customers to be satisfied and is willing to stand behind its products
Wilfrido ivan trejo acosta
Reviewed in Mexico on February 10, 2024
Al tacto se siente de muy buena calidad el material aún no la pruebo pero si se siente de buena calidad
Customer
Reviewed in Canada on December 23, 2024
I tested this step bits with different materials and decided to change my mind,Product very well, working good with aluminum, copper, and think metal.Would recommend.
Electrician
Reviewed in the United States on October 5, 2024
If you’re thinking about getting these, think no more! Get them!! For the price you can’t go wrong and you will be glad you did. I’m an electrician and use step bits daily. I love how it comes in a variety of sizes for different task. Will definitely buy again
Pool owner
Reviewed in the United States on October 20, 2024
I use this product on multiple boxes to drill out. I work as a new construction electrician and use these every day
Joe stolz
Reviewed in the United States on November 9, 2023
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