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    GMTOOLS

    115Pcs Cobalt Drill Bits Set, M35 High Speed Steel, 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Plastic and Wood with Metal Indexed Storage Case, 1/16"-1/2"

      • Based on 1,928 reviews
    Condition: New
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    $139.99 Why this price?

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    Availability: In Stock.
    Fulfilled by Amazon
    Arrives Monday, Apr 7
    Order within 12 hours and 55 minutes
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    Style: 115 pcs Cobalt


    Features

    • 115 Pieces Set Includes: 29pcs Fractional Size: 1/16 to 1/2 inch bits in 1/64th increments; 26pcs Letter Size: A To Z; 60pcs Numbered Size: #1 To #60; Set includes the drill bit holder with size index for easy storage and organizing
    • Perfect Drill Bits: Precision grinding process for a clean surface and high grinding accuracy. Universal round drill shank, widely applicable of tool holding systems and tightly clamped
    • 135 Split Point & Twist Design: The 135 degree fast cutting point is automatically centered and penetrates quickly with less pressure, reducing walking, fully ground drill bit with sharp and durable cutting edge. Twist design for clear chips faster
    • Enhanced M35 Alloy Material: These drill bits contain 5% Cobalt alloy steel, which increases wear resistance and durability. Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set
    • QUALITY COMMITMENT: If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back. 100% Satisfaction Guarantee for risk-free shopping!

    Material: Cobalt Steel


    Cutting Diameter: 0.5 Inches


    Finish Type: Titanium


    Shank Type: Straight


    Cutting Angle String: 135 Degrees Degrees


    Package Dimensions ‏ : ‎ 15.51 x 6.26 x 4.09 inches; 7.21 Pounds


    Date First Available ‏ : ‎ July 5, 2022


    Manufacturer ‏ : ‎ GMTOOLS


    Best Sellers Rank: #4,949 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #13 in Jobber Drill Bits


    #13 in Jobber Drill Bits:


    Customer Reviews: 4.5 4.5 out of 5 stars 1,928 ratings


    Frequently asked questions

    If you place your order now, the estimated arrival date for this product is: Monday, Apr 7

    Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

    To initiate a return, please visit our Returns Center.

    View our full returns policy here.

    • Klarna Financing
    • Affirm Pay in 4
    • Affirm Financing
    • Afterpay Financing
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    • Financing through Apple Pay
    Leasing options through Acima may also be available during checkout.

    Learn more about financing & leasing here.

    Similar Products

    Top Amazon Reviews

      • Durable. Literally no issues with it.
    Style: 13 pcs Cobalt
    I used these to drill a number of things when fixing my motorcycle. Functional when drilling plastic and metal! A variety of things, no problems with it at all, and it seems extremely durable, like I could use these the rest of my life. Definitely worth it for the value.
    Reviewed in the United States on March 18, 2025 by Kyra
      • Good bits!
    Style: M35-3/16-10pcs
    Great drill bits! I ordered these to drill out rivets in the floor of my 18’ aluminum boat so I could replace the foam. With no room for error I needed a quality drill bit that wouldn’t walk. These did the task perfectly and lasted for a long time. Removed whole floor with only using two bits. I could have done it with one, but toward the end the first bit started to dull slightly. I will order more of these bits in different sizes in the future. ... show more
    Reviewed in the United States on January 20, 2025 by Justin G.
      • Worked As I Hoped; But A Little Disappointed!
    Style: 115 pcs Cobalt
    I’ve Wanted and Searched For 115 Piece HSS Cobalt Drill Bit Set For More than 5 Years! When Prime Days Came, I Thought I Was Getting a Great Deal, as The Normal Price Was Inflated Compared to What It’s Listed At Right Now! As It Is, I Saved $14! THE GREAT LIE, PRIME DAYS! The Price Was Suppose To Be 35% Below Normal Price, Plus a 10% Coupon! But, I Used the Product the Day After I Got It To Drill Out a Hardened Steel 10mm Bolt in My Engine, That I Managed To Snap Off! It Went through it Like Butter with Cutting Oil! Cleaned Up Easily to Return to It’s Place in the Box! Which Does Seem Pretty Sturdy But, We’ll See How it Holds Up in About 5-10 Years! I’m Wanting These to Be The Last Bits I Ever Buy! But, Like Most, We’ll See How the Smaller Bits Hold Up as They Tend to Snap Easily! At Least That’s Been My Experience Over 40 Years! What I Really Wish They Would Have Done, is Identified The Drill Bit Size, High Lighting 4mm to 12mm or What Ever is The Largest, on The Right Wing! The Bits Are Identified By Size on The Left Wing and The Back! I Don’t Know the Reason, They Couldn’t Provide More Information on The Right Wing Besides A-Z! It Would Make Things So Much Easier! Now I Have to Search The Internet for a Sizing Chart To Identify The Size Associated With The A-Z Drill Bits! Imagine, Having To Go To a Competitor Who Actually Provides Some Help & Insight to Their Customers! I Know There Are Some, That At Least Have a Chart for Download, About the Size of Their Bits, Including The Size of A-Z Bits! As I Said, I’ve Been Searching For a While! This Will Definitely Be On My Mind, If I’m Looking for Other Tools and GM Comes Up At a Possibility! ... show more
    Reviewed in the United States on September 1, 2024 by Greg1163
      • Very tough
    Style: 15 pcs Cobalt
    I had never used cobalt bits before, but a recent project requiring holes in very tough hardened steel required it. My normal bits wouldn't tough the stuff. These worked flawlessly
    Reviewed in the United States on March 2, 2025 by Dale Diaz
      • Perfect!
    Style: 29 pcs M2
    Perfect! When drilling metal doors you can't fix it if you drill too large. It's good to have a variety of sizes. Worth the money and the simple design of the container is great. Easy to find and use.
    Reviewed in the United States on March 5, 2025 by Melanie Warren
      • Cut Well!
    Style: 115 pcs Cobalt
    These drills are sharp and cut excellently. Great price for a great set. As others commented: it's a bit hard to read some of the drill sizes in the "wing" holders.
    Reviewed in the United States on March 23, 2025 by Jesse
      • Quality and price
    Style: 29 pcs Black Gold
    Great tools good price
    Reviewed in the United States on March 22, 2025 by JR
      • Missing a bit
    Style: 29 pcs Cobalt
    It was missing the 1/16 drill bit
    Reviewed in the United States on March 8, 2025 by dave

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