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Countersink Drill Bit Set, M35 Cobalt HSS Countersink Drill Bits 6 Pieces 1/4 Inch Quick Change Hex Shank for Metal, Wood, Stainless Steel, Carbon Steel

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$29.99

$ 15 .99 $15.99

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About this item

  • HIGH-QUALITY COBALT MATERIALS -- MATEWORK countersink drill bits are crafted from M35 cobalt high-speed steel, Provide double protection fortified with a cobalt coating for enhanced durability, corrosion resistance, and heat resistance.This guarantees reliable performance, even in demanding applications.
  • EFFICIENT CUTTING DESIGN -- With a five-flute design, these drill bits offer superior stability during cutting and efficient debris discharge. This design extends the blade life, ensures accurate cuts, and speeds up the drilling process.
  • VERSATILE APPLICATIONS -- Includes 5 most popular sizes (1/4", 3/8", 1/2", 5/8", 3/4") and 1 special size 5/16". M35 Cobalt Countersink Drill is suitable for stainless steel, carbon steel, iron, copper, aluminum and most other metals as well as wood, plywood, etc.
  • USER-FRIENDLY DESIGN -- Featuring laser-engraved step sizes, our countersink drill bits ensure clear visibility and durability during use. This design enhances convenience and accuracy, streamlining the drilling process.
  • DEDICATED CUSTOMER SERVICE -- While our products undergo rigorous quality inspections, we understand that unforeseen issues may occur. Rest assured, we are committed to providing professional customer service. If you encounter any quality problems, please contact us via Amazon for prompt assistance and replacement.



Product Description

HIGH HARDNESS & LONG LIFE COBALT COUNTERSINK DRILL BIT

Cobalt countersink drill bit set

OPERATION GUIDE

Cobalt countersink drill bit set

THE MOST COMPLETE COUNTERSUNK DRILL BIT KIT (6PCS)

Cobalt countersink drill bit set

CAN BE USED ON MOST MATERIALS

Cobalt countersink drill bit set
Cobalt countersink drill bit set
drill bit

Austin
2025-08-31 15:52:03
Drilling stainless steel is not easy, these do it with ease! Quality feels okay, theyre not extremely expensive feeling but they dont feel like chinese garbage. Fit into the drill or impact driver without worries. So far durability is good. We have not needed to sharpen or contact for warranty if they have a warranty. They are sharp out of the box. They function as intended. Use your tools for what they are designed for.
Gary R.
2025-08-27 18:07:29
They create a symmetrical taper hole unlike my single flute that I had and the quick change is nice because I can use it in my driver and a bit in my drill and not have to change back and forth. I can change from the counter sink to a screw bit with less hassle than I could with the drill.
George Borrelli
2025-08-10 12:40:38
Fairly decent for the price
Ann
2025-07-21 17:03:05
Excelente
Ronnie Nacker
2025-06-27 11:56:47
This is a high quality counter sink set that comes in a small plastic protective box that fits nicely into my arsenal of tools in my carry along bag. I have used all the bits in various types of wood and metal and is super smooth during drilling. Paid its self off already for me!
Customer
2025-05-23 16:47:32
Nice set been using on steel alluminum and brass. Not the best quality but gers the job done
Rigoberto Morales
2025-04-17 10:10:35
Mesirbe para mi trabajo
Tony
2025-03-31 12:39:12
Set to use and change outRecommended
Augusto Panecatl
2025-02-14 19:04:01
Aunqie son de cobalto (supuestamente) y cortan relativamente ràpido, el afilado es bastante deficiente, en definitiva es necesario usar otro avellanador de HSS para darle acabado final.
Francis Laplante
2025-02-07 21:02:46
Juste bon pour fraiser du bois mou. Ce n'est surement pas du M35. La 3/4 glisse sur l'acier doux.
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