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Cobalt Twist Drill Bit Set
Material: High Speed Steel, Alloy Steel, Cobalt
Angle Point: 135 Degree
Finish Type: Cobalt & Black Oxide
Shank Type: Hex Shank
- 13pcs cobalt hex shank drill bits set, include 1.5, 2.0, 2.5, 3.0, 3.2, 3.5, 4.0, 4.5, 4.8, 5.0, 5.5, 6.0, 6.5mm with 1/4 hex shank.
Classic black oxide high speed steel construction with cobalt coating for performance and durability. Hardened cutting edges increase sharpness.
The 1/4" hex shank mounts easier and more securely in all power tools, especially for locking quick change chucks.
The 2-flute form helps remove chips and debris from the drill, reducing friction and heat for a faster, cooler drilling process.
135° split-point tip and twist design increases cutting speed while easily self-centering to prevent walking. With a twist design, the drill quickly clears chips, leaving a clean and smooth hole. Say goodbye to all those chips and particles.
Cobalt Twist Drill Bit is suitable for wood, plastic, steel within 5 mm thickness, aluminum alloy and other soft metals.Do Not Use On glass, ceramic materials, cast iron and stainless steel.
ralt33amzmusic
Reviewed in the United States on January 17, 2025
nice assortment
Gizzybean
Reviewed in the United States on May 7, 2024
At such low price for these drill bits I already had no expectations for them lasting long. But they are far beyond that. Dull, wobbly, bit spinning inside the holder, inaccurate dimensions, some have no size stamp.
Walter
Reviewed in the United States on March 3, 2024
Bought these drill bits thinking cobalt would last, but they look and feel lighter than they should. I used the M4 and M5 still bits once each and both snapped in half. Very poor product, do yourself a favor and go buy a real cobalt piece because that is a day and night difference.
Alexander
Reviewed in the United States on February 9, 2024
Not buy, it's hollow pipe with bit, not monolit just marketing photo.
Dale
Reviewed in the United States on February 23, 2024
I went out of my way to purchase these bits. I wanted drill bits in a ¼ hex shank. When working on my DIY projects I alway start small and work my way up drilling holes and it such a hassle swapping bit. This make it easy and no more drill slippage in the drill chuck. I would have like to have a case as the arrived I a plastic box. Disappointing. Guess I'll make one. I am using these on plexiglass so not sure how they'll so on metal. There are couple odd sizes in the set and the larger bit didn't have marking of the size stamped on them. A few odd the bit wobbled so that was a bit disappointing but expected for the price.
Tim
Reviewed in the United States on December 22, 2024
love these for ease
alicia jokinen
Reviewed in the United States on November 1, 2024
Excellent product
Customer
Reviewed in Australia on October 17, 2024
Tested these bits right away for central spin and a couple of the smaller bits looked a tad of centre. Have not used them to drill anything yet so cannot attest to their sharpness.
Daniel Valdes
Reviewed in the United States on August 24, 2022
Excelente producto
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