Search  for anything...

Countersink Drill Bit, TiAlN Coatied Cobalt Steel Bit, 82 Degree Sharp Angle, 3/8" Round Shank, 1/2" Body Diameter for Hard Metal Wood Plastic Glass (82 Degree)

  • Based on 39 reviews
Condition: New
Checking for product changes
$16.87 Why this price?
Save $23.12 was $39.99

Buy Now, Pay Later


As low as $4 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Nov 26
Order within 5 hours and 53 minutes
Available payment plans shown during checkout

Style: 82 Degree


Features

  • HSS Material:This countersink bit is crafted from industrial - grade M35 cobalt HSS, which is harder,more wear-resistant,and more durable than regular HSS,providing better control and stability.
  • Product Size: Round shank uses the most common drill bits on the market. 82 degree angle,3/8" round shank,1/2" body diameter,Better results on the drill.
  • TIAN Coating:Aluminum titanium nitride coating with 35Gpa nano-hardness ensures better performance on hard metals, allowing for higher speeds.800C max working temperature gives it an extra long service life.
  • Applicable Materials:Perfect for cutting hard metal, wood, aluminum, plastic,acrylic sheet, fiberglass and other soft metals with very smooth and burr-free chamfering.
  • Warranty Policy: If you are not satisfied with our countersink bits while you are cutting, please contact us and we will refund or replace 100%.
  • Caution:When we use the drill, please check whether the drill is properly fixed in place. If there is deviation in the placement, it will cause uneven chamfering.

Material: Cobalt Steel


Finish Type: Titanium


Shank Type: Round


Cutting Angle String: 82 Degrees


Brand: Yuqutum


Product Dimensions ‏ : ‎ 2.52 x 0.67 x 0.75 inches; 1.13 Ounces


Date First Available ‏ : ‎ February 2, 2023


Manufacturer ‏ : ‎ Yuqutum


Country of Origin ‏ : ‎ China


Best Sellers Rank: #175,779 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #203 in Countersink Drill Bits


#203 in Countersink Drill Bits:


Customer Reviews: 4.2 4.2 out of 5 stars 39 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 26

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
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Perfect Tool For The Job!
Style: 82 Degree
I needed to clean up the angled bottom surface of the hole and also increase the chamfer depth/diameter of some predrilled holes on a replacement Wind Wing on my Backdraft Racing RT3 Shelby Cobra Replica to correctly fit the mounting hardware depth & diameter. As purchased the holes were incorrectly countersunk on both depth and diameter and the bottom of the holes were very uneven due to gouging caused by too much tool pressure and the incorrect type of tool for the Lexan material. You can see the way they came to me originally in picture 1 & 2 and how they look corrected in pictures 3 & 4. The tool I purchased from Amazon is a "Uniflute" Style and the single flute helps to prevent the uneven bottom depth and rough surface on the bottom by eliminating the gouging with light tool pressure and a single flute whereas the multi flute that I am certain the originals were done with doesn't work well with softer materials. You can see the Wind Wing mounted on the Windshield Frame just behind and slightly above the mirror. ... show more
Reviewed in the United States 🇺🇸 on May 1, 2023 by M3Woody M3Woody

  • Worked good in thin Steel
Style: 82 Degree
This odd shaped bit worked quite well for me. It is important to keep the hole clear of chips or cuttings. I used it in 0.1" thick electro-galvanized steel and 1/8" stainless. Use low speeds and a lot of pressure. A drill press helps with the pressure. Cutting fluid like Magic Tap is recommended. Any oil is better than no oil. (not vegetable oil) Low speeds keep the heat down. I have a pile of spiral cuttings from this bit. I tried https://www.amazon.com/dp/B07MCS2441?ref=ppx_yo2ov_dt_b_product_details&, which at the time said it was for steel. Read my review on that product. ... show more
Reviewed in the United States 🇺🇸 on May 23, 2023 by Dan Van Fleet

  • Great counter sink
Style: 82 Degree
Works really well, was installing aluminum corners on drywall
Reviewed in the United States 🇺🇸 on April 29, 2023 by Alan G.

  • Duller than a butter knife
Style: 82 Degree
Bout this countersink thinking it was going to be better than a regular ryobi countersink only to find out that a 2 month old ryobi countersink was faster than this 10/10 do not recommend
Reviewed in the United States 🇺🇸 on May 19, 2023 by Counter sink is fuller than a night out with grandma

  • Works
Style: 82 Degree
Worked as I needed it too. Only used once. Seems to be of good quality. Glad to have this as part of my tools.
Reviewed in the United States 🇺🇸 on May 30, 2023 by Teriboberi

  • Countersink Drill Bit, TiAlN Coatied Cobalt Steel Bit, 82 Degree Sharp Angle, 3/8" Round Shank
Style: 82 Degree
Cuts nicely in pine. I've only used it a few times so I cannot speak to it's longevity yet.
Reviewed in the United States 🇺🇸 on May 23, 2023 by Barry Barry

  • A Pretty Good Countersink, You Must Pre-Drill a Hole to Use It In Metal
Style: 82 Degree
This is the first countersink bit of this type I've tried. It arrived in a little plastic tube which kept it from getting bumped around which also doubles as a storage case. I will say that I'm not super-fond of the countersink bits with four or six flutes. They don't seem to last long and they chatter when cutting aluminum. Carbide 'Veining' or 'V-Groove' router bits cut a lot better, but not on steel, and they are almost too aggressive for wood when used in a hand drill. You can run them all the way through your workpiece if you're not careful, because they tend to self-feed. This single flute bit design eliminates those problems, but introduces caveats of its own - you must drill a pilot hole to get this bit started in metal. Wood is soft enough that some firm pressure is enough to get things started, but as another reviewer pointed out, the hole in the bit does get clogged up with wood shavings. On the upside, with this design you get smoother holes without chatter or tearout and a more controllable bit. Overall, I think this is a quality item. It's not cheap, but if you need nice smooth countersinks it can do the job for you. ... show more
Reviewed in the United States 🇺🇸 on March 31, 2023 by Brian

  • Works as described
Style: 82 Degree
I have several types of countersinks. This one tends to create the smoothest holes. I like the ones with the drill bit better for simplicity but the holes are better with this.
Reviewed in the United States 🇺🇸 on May 3, 2023 by DAVID K RIFFE

Can't find a product?

Find it on Amazon first, then paste the link below.