9%
















Cobalt Countersink Drill Bits Set(5PCS), M35 HSSCO 82 Degree 5 Flutes,1/4 Inch Quick Change Hex Shank for Stainless Steel, Metal, Wood, Carbon Steel 1/4” 3/8” 1/2” 5/8” 3/4”
0 out of 5
$26.99 Original price was: $26.99.$29.43Current price is: $29.43.
SKU: B0CYTKCKTQ
- Shipping
- Size Guide
- Reviews (9)
- More Products

| Size | DHL Box | Internal Dimensions (cm) | Max Weight (kg) | FedEx Equivalent (approx.) |
|---|---|---|---|---|
| XS | Box 2 | 33.7 × 18.2 × 10 | ~1 | Small Box (8″×8″×8″) |
| S | Box 3 | 33.7 × 32.2 × 10 | ~2 | Medium Box (12″×12″×10″) |
| M | Box 4 | 33.7 × 32.2 × 18 | ~5 | Large Box (13″×13″×11″) |
| L | Box 5 | 33.7 × 33.2 × 34.5 | ~10 | FedEx 10kg Box (40.16 × 32.86 × 25.88) |
| XL | Box 6 | 41.7 × 35.9 × 36.9 | ~15 | FedEx Large (16″×16″×16″) |
| XXL | Box 7 / 8 | 48.1 × 40.4 × 38.9 or 54.1 × 44.4 × 40.9 | ~20–25 | FedEx Extra Large (42 × 42 × 47) |
9 reviews for Cobalt Countersink Drill Bits Set(5PCS), M35 HSSCO 82 Degree 5 Flutes,1/4 Inch Quick Change Hex Shank for Stainless Steel, Metal, Wood, Carbon Steel 1/4” 3/8” 1/2” 5/8” 3/4”
Add a review Cancel reply
-
✅ Metalworking Machines
Metal Needle File Set Metal Files Files Tools for Metal Needle Files Small File set for Metal Work Flat File File Tool Steel File Hand Files for Metal Wood Plastic Jewelry Leather DIY 6 Pcs
0 out of 5$13.99Original price was: $13.99.$6.31Current price is: $6.31. -
✅ Packaging Machines
4 PCS Set Compression Packing Cubes for Travel, Lightweight Packaging Organizer Bags for Carry On Space Saving, Travel Essentials Cubes for Suitcase Backpack, Brown
0 out of 5$53.00Original price was: $53.00.$16.99Current price is: $16.99. -
✅ Packaging Machines
Maxdot 12 Pack Shrink Wrap Handle Plastic Wrap Dispenser Pallet Stretch Film for Moving,Fits 3 Inch Core,Industrial Strength Packing Tool for Pallet Warehouse Wrapping Packaging Shipping Moving
0 out of 5$29.99Original price was: $29.99.$27.59Current price is: $27.59. -
✅ Building Materials Machines
Kraftic Woodworking Building Kit for Kids and Adults, 2 Educational DIY Carpentry Construction Wood Model Kit Toy Projects for Boys and Girls – Build a Wooden Town Hall Birdhouse and Train
0 out of 5$103.00Original price was: $103.00.$44.99Current price is: $44.99. -
✅ Building Materials Machines
3 In 1 Framing Tools,12/14/16 On-Center Stud Layout Tool,Framing Spacing Tool,100% Cast Aluminum Wall Stud Framing Tool,Precision Measurement Jig Tool For woodworker,building,Furniture DIY (1PACK)
0 out of 5$44.99Original price was: $44.99.$40.35Current price is: $40.35.
Related Products
Carpenters-Tools&Equipment
$16.99 Original price was: $16.99.$17.23Current price is: $17.23.
20lb.Telescoping Magnet Stick,Magnetic Pickup Tool, Gadget for Men Tool Telescoping Magnet Stick,Gifts for Men for Auto Repairer Carpentry etc.Extend up to 30". Small Metal Extends Tools. (3PCS)
0 out of 5
Carpenters-Tools&Equipment
$24.99 Original price was: $24.99.$11.49Current price is: $11.49.
IRWIN Tools Combination Square, Metal-Body, 6-Inch (1794468), Blue
0 out of 5
✅ Automotive & Motorcycles
$18.99 Original price was: $18.99.$20.69Current price is: $20.69.
MARQUE Combination Bike Lock Cable- 3/8 inch (5FT, 10FT, 15FT, 25FT) Resettable Combination Lock, Anti-Theft Coiled Secutiry Cable for Bicycles, Kayaks, Paddle Boards, Gates and Outdoor Gear (5 FT)
0 out of 5
✅ Building Materials Machines
$19.99 Original price was: $19.99.$21.55Current price is: $21.55.
Toolwiz Magnetic Pick Up Sweeper 17-inch Heavy Duty Magnet Pickup Lawn Sweeper Roofing Tools, 8.8 Lbs Yard Magnet with Telescoping Holder and Wheels to Pick Up Nails Magnetic Sweeper for Construction
0 out of 5
















D. D. McClelland –
VALYRIANTOOL Cobalt Countersink Drill Bits
If you are into DIY, or Modelmaking, these are useful tools and well priced.
Billy –
Good Quality M35 Countersink Bits
These countersink drill bits come as a 5-piece M35 cobalt HSS set in 1/4″ to 3/4″ head sizes each with a 1/4″ quick change hex shank. They come sharp and are well-machined. I have used them exclusively in hardwoods and they have performed well with nice clean countersunk holes. I have not noticed any change in their cutting action, and they should last a substantial length of time. They do come only in a thin open plastic holder that is fine for inside a drawer but does not suffice for a storage case for transport or for leaving out open in the shop. I personally relocated them to a custom 1/4″ hex shank holder I made for them for storage in my drill cabinet, so they remain protected and ready for use. I am quite happy with their performance and quality and would recommend them.
M. Tin –
Ok for the price
These are not top of the line bits, but they will get the job done. I drilled 24- 5/16 holes and used the 1″ counter sink for all of them and it worked fine.
D –
Nice bit set – wish they had come in a case
I do a lot of DIY and handy work so these were a good set of bits to add to my toolbox. They have held up really well so far. They are sharp and precise. I’ve been happy with how well they work. The only complaint I have is that I wish they had come in some kind of case. Other than that, I’m very happy with these bits.
Jason Kelly –
Garbage
If I could give it 0 I would. Cobalt my a$$. Didnât do anything to the piece of steel I have. A return is in the future.
Paul H Airhart –
Worked good not great on steel
It said it was for metal also, but even with the work in a vice and the counter sink chucked up in a drill press it chattered.I was going for a sharp chamfer on the holes, ended up having to use a stone to grind them smooth, sanded and polished and the sharp edge went away. Too bad. They should work great on everything else, just not a high carbon steel.
goat8485 –
Wow these make nice countersink holes
I use these primarily for woodworking and home repairs. Countersunk holes just look cleaner and more professional. These cut easily and cleanly and Iâve been really impressed with the holes that these cut. They work great, especially for the price. I do wish they came with a nicer case, but thatâs a pretty trivial complaint. Would gladly order these again!
T C –
Great little countersink bits.
Handy addition to my tool set. Several common sizes, 1/4â drive so I can use my smaller drill driver tool. They work very well for countersinking wood and metal. Very sharp and so far have held an edge. A better storage case would have been nice, but they still meet their intended use. Good value.
Luis –
Ya los he utilizado para avellanar aleaciones de aluminio y últimamente también he avellado láminas de acero y funcionan muy bien, buen producto.