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6pcs Step Drill Bits for Metal, Step Drill Bit Set 50 Sizes Tri-Flat Shank HSS Titanium-Coated with Center Punch for Aluminum, Wood, Plastic, with Aluminum Case, from Pro-Edge Technology

Description:

About this item:

  • 【LESS DRILL BITS WITH MORE SIZES】:This high-speed steel step drill bit set includes 5 step drill bits with 50 sizes.The step-by-step design of the step drill bits allows it to gradually expand in a hole, meeting various drilling needs for different diameters. The step drill bit does not need to be replaced when holes with different diameters are machined.
  • 【HIGH WEAR RESISTANCE】: This set is made from high-speed steel and combined with titanium coating, providing the drill bits with excellent wear resistance and heat resistance.3x longer life with uncoated step drill bit.
  • 【118° SPLIT POINT TIP & SIZES MARKING】: The 118° split point tip can minimize friction and resistance during the cutting process, thereby improving cutting efficiency. The laser-etched size markings provide positioning assistance for precise drilling, making the operation more user-friendly.
  • 【WIDE APPLICATIONS】: This step drill set is not only suitable for metal processing, but also can be used for drilling holes in wood, plastic and composite materials. Whether you are a professional machinist, carpenter, or a home DIY enthusiast, you can benefit from it.
  • 【SERVICE GUARANTEE】: If you encounter any issues during use, please feel free to contact us at any time. We will respond to you within 24 hours and provide a solution.
  • Review:

    4.8 out of 5

    95.00% of customers are satisfied

    5.0 out of 5 stars Great Value Unibits

    T.B. · May 24, 2025

    (function() { P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function') { A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })(); .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } Exellent value and seem to perform well. We have Kimball Midwest units that cost 4 times the money seem simular in quality.

    5.0 out of 5 stars Wonderful set

    R.S. · May 24, 2025

    They worked awesome

    4.0 out of 5 stars Seem Nice, Time will Tell

    S.P. · May 2, 2025

    Just received them. The seem sharp and well made. Time will tell how long they hold up drilling holes in steel. I start the holes with cobalt bits, then need these to go beyond 1/2" diameter hole. Nice little carry case too. Given the price point, realistically these probably are not lifetime quality. How long they last will depend upon the steel I'm drilling. Not long ago I encountered something which the cobalt bits could not penetrate and I had to grind away using carbide burrs. Now I have several cobalt bits needing sharpening.

    5.0 out of 5 stars Excelente

    H.R. · May 25, 2025

    excelentes

    5.0 out of 5 stars Great product.

    B.K. · April 30, 2025

    Great product.

    5.0 out of 5 stars Great affordable bit set

    g.l. · March 25, 2025

    Excellent step bits for the price.

    4.0 out of 5 stars Reasonable quality - good price

    w. · May 11, 2025

    These work well in wood and plastic and the steps are sized well. They are still sharp after some use. The whole set is a very good value. The punch is the same cheap one that every sells but its a free addon. I didn't feel like it did that great of a job on aluminum but I don't work with metal a ton - I used 3 n 1 oil as a cutting fluid I don't know , everyone else seems to think it did ok maybe it was me. Overall it seems reasonably durable and did a good job.

    5.0 out of 5 stars Well Made, Work Well

    L. · April 19, 2025

    A great little set for a really attractive price. The price point had me somewhat worried about longevity and efficiency, but so far they've stepped up to the plate admirably. Cut quickly and cleanly, and the centre punch is really handy to get things going on metal and plastic. The five bits allow you to cover a really wide (literally) spectrum of sizes, and I've so far not encountered any damage to the bits while in use. Really happy with this handy inexpensive set.

    6pcs Step Drill Bits for Metal, Step Drill Bit Set 50 Sizes Tri-Flat Shank HSS Titanium-Coated with Center Punch for Aluminum, Wood, Plastic, with Aluminum Case, from Pro-Edge Technology

    4.5

    BHD13428

    Size: 5pcs set
    Style: Straight Flute

    Quantity:

    |

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    Product origin: United States

    Electrical items shipped from the US are by default considered to be 120v, unless stated otherwise in the product description. Contact Bolo support for voltage information of specific products. A step-up transformer is required to convert from 120v to 240v. All heating electrical items of 120v will be automatically cancelled.

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