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IRWIN

IRWIN Drill Bit Set, M35 Cobalt Alloy Steel Steel, 29-Piece (3018002)

  • Based on 1,052 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sep 10 – Sep 11
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Size: 29pc Pro Case


Style: Cobalt


Features

  • 29 Piece
  • Cobalt Alloy Steel Drill Bit Set
  • Sizes 1/16 inch -1/2 inch in 1/64 inch increments, 135 Degree Split Point To Minimize Walk
  • 5% Cobalt Alloy Steel For Higher Heat & Abrasion Resistance
  • Heavy Duty Web Construction For Strength & Durability

Description

Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. Made from industrial grade High-speed steel for increased durability. 8% Cobalt Alloy Steel alloy is heat and abrasion-resistant. 135-degree split-point tip starts drilling immediately with less force and eliminates "walking" across the work surface. Metal index case for easy bit access and identification. Includes drill bit sizes 1/16- to 1/2-inch in 1/64-inch increments. IRWIN Tools Cobalt Alloy Steel High-Speed Steel Drill Bit, 29-Piece Metal Index Set (3018002). The Irwin 29-Piece Cobalt M-35 Metal Index Drill Bit Set includes drill bit sizes measuring from 1/16 to 1/2-inch in 1/64 inch increments. The 29 bits are made using heavy duty web construction for strength and durability, and the cobalt steel extends the life of cutting edges. The 135-degree split point tips start drilling on contact and cut with less force. A reduced shank above the 3/8-inch point lets you use larger drill bit in a 3/8-inch chuck, and you can select the right bit using a convenient tap and drill selection chart. The set's rubber overmolded case protects against damage from accidental dropping, and you can remove cartridges to easily carry bits from the case to your worksite.

Material: Cobalt


Finish Type: Cobalt Alloy Steel


Shank Type: Split Point


Cutting Angle String: 135 Degrees


Brand: IRWIN


Material: ‎Cobalt


Finish Type: ‎Cobalt Alloy Steel


Shank Type: ‎Split Point


Cutting Angle String: ‎135 Degrees


Brand: ‎IRWIN


Item dimensions L x W x H: ‎11.6 x 12.3 x 3.4 inches


Tool Flute Type: ‎Spiral


Point Style: ‎Brad Point


Surface Recommendation: ‎Alloy Steel


Number of Flutes: ‎2


UPC: ‎024721065131 072090456609 013317064573 640026835608 247210851538 031112513171 024721631381 643749770621 640024789705 013588056437 031113081044 024721085153 971473194087 787721785538 080850305630 735090418502 732454799673 971473194070


Unit Count: ‎1.0 Count


Global Trade Identification Number: ‎31


Manufacturer: ‎IRWIN


Number of Pieces: ‎29


Part Number: ‎3018002


Item Weight: ‎4.5 pounds


Product Dimensions: ‎11.6 x 12.3 x 3.4 inches


Item model number: ‎3018002


Is Discontinued By Manufacturer: ‎No


Size: ‎29pc Pro Case


Color: ‎Multi


Style: ‎Cobalt


Finish: ‎Cobalt Alloy Steel


Pattern: ‎Solid


Shape: ‎Rectangular


Power Source: ‎Ac


Item Package Quantity: ‎29


Measurement System: ‎Inch


Included Components: ‎29PC DRILL BIT INDUST SET CASE COBALT


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: January 23, 2006


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 10 – Sep 11

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.

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Top Amazon Reviews

    • good bits
i use these all the time they hold up well , i have bought several through the years and always good quality they work perfect on hard steel ,i would never buy cheap bits again ,well worth the money
Reviewed in the United States on November 21, 2024 by handfree
    • Best drill bits ever
Highly recommend for hardened steel
Reviewed in the United States on January 15, 2025 by stephen s.
    • Great Bits; Cheap Education
I make no pretense to being a professional machinist, et cetera. In truth, pre-MBA, I was a scientist via mathematics. So, if your metric for relevance is related-professional-experience, give my review a skip. Indeed, I spent four years at a posh, New England prep-school, so, I even missed learning experiences such as "shop classes," ... among other things. Prior to these Irwin cobalt bits, I was of the, "crank up the (rotational) speed and hope for the best," school of metal drilling. Stupid. Watching (literally) these bits work provided a priceless, hands-on lesson in applied physics and physical metallurgy. Slow the rotational speed down (W-A-Y down), judiciously increase pressure (id est, PSI-loading), and watch ever longer spirals emanate from your successive drillings. Conversely, crank up the rotational speed, cook the bits, and complain about poor Chinese product molecular composition, drill bit fabrication, or, for something utterly inane, the packaging. I "cooked" the Irwin cobalt 1/4-inch bit and split the 3/8-inch. Fortunately, those two were the extent of my tuition costs. Despite the "handicaps" enumerated in the first paragraph, over the last twenty-five years, I have built eighteen proper -- with foundations and electrified (as in, "electrons," thank you) -- buildings, worked on heavy equipment (through 40-ton 'dozer), and burnt "miles" of welds. So, while I'm not "professionally" credentialed in the machining/building trades, I had been sought out to "fix" mechanical/"mechanical" problems of many folk who were. I was far from an utter rookie when the Irwin cobalts arrived; I am sure glad that they did. I'll buy more if and as needed. ... show more
Reviewed in the United States on June 6, 2013 by noonesbusiness
    • Must Buy
Great set and these drill bits are the best I've used (baring specialty bits that are as much as this whole set). We were recently drilling through some thick metal to attach some new wooden slats to a cart and I was using one of these bits to drill with. After about 40 holes (with no cutting oil mind you) and not taking much of a break between, I did finally break one. We needed to drill roughly 50 holes. Went to the hardware store and they didn't have any of these in stock, just the lower grade ones. Titanium or something, I don't' remember. Anyway, broke 5 bits in the last 10 holes. Basically, these are way better than the alternatives. The reason for 4 stars it that the case is kind of terrible. The smallest drill bit constantly falls out and the whole thing is soooooo chintzy. It has that feel like the execs were sitting around and said "How can we make it SEEM like it's high quality and still make it as cheap as possible?" Barring the lousy case, you'd be hard pressed to find a better set of bits for this low a price. I can't recommend it enough. ... show more
Reviewed in the United States on February 25, 2017 by Christian M.
    • The bits are great, the case is terrible.
The bits are very good, very sharp. The case is terrible. Hard to open, hard to close. The top does not match the bottom. I would buy again only for the bits. I am looking for a good case. This one should be replaced by a good one. Someone in quality control is not doing their job.
Reviewed in the United States on March 25, 2024 by Jimmy C. Dowers
    • Love it
Works great
Reviewed in the United States on March 13, 2025 by Jack Williamson
    • Someone need a hole drilled?
Drill bits have always been like fingernail clippers for me....no matter how many I buy, I can never find one when I need it. I got tired of buying cheap, "throw away" drill bit sets that made more frustration than holes. I figured it was time to buy a nice set of drill bits so I picked up this Irwin set. This is a very nice cobalt set with a large assortment of sizes. Sure, you're paying a premium for them, but if you use them as intended, they'll last you years in a DIY environment. I've had mine almost 5 years and haven't broken a single one. I'm not a professional machinist, but I know enough to realize that even though these are "High-speed" drill bits, that doesn't mean you go full throttle when drilling holes. Take your time, slow down the RPMs, use a little bit of cutting oil and these babies will cut through anything and you'll still have a nice, sharp bit when you're done. Very impressed with this set and I would buy again. ... show more
Reviewed in the United States on October 14, 2015 by Scott
    • Excellent,unbreakable, no frustrations!!!
Over 40 years I have purchased approx. 15 sets of drill bits for my husband. I finally decided that the old saying "You get what you pay for" rings true regarding this drill bit set. My son-in-law purchased a Dewalt 1/2 " drive (heavy duty) drill for my husband for Christmas. Using both products together really got the job done. He has used the bits to drill through 2 1/2 inch pipe to create a "portable" corral/loading area for out cattle. These products drilled through the thick steel materials like butter. He also drilled a hole through 1/2 swedish (hardened) steel with no "wandering of the bit" when starting the hole, it cut the normal time by about 75% (he would normally go through 2 or 3 bits that would dull or break before it would get the job done)total frustration!. This is an excellent investment that you should happily purchase as a very generous gift for the man in your life. It's always nice to see your husband happy the gift you have purchased for him, not like shirts or ties, a real investment in making his work easier for him. A "Ranchers Wife" ... show more
Reviewed in the United States on January 21, 2010 by JeanieLou

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