Kobalt 4 -Piece 1/8-in Assorted 1-5/8-in High-speed steel Countersink Twist Drill Bit Set
Item #280540 |
Model #80277
Set includes: #6 (3/32in pilot), #8 (7/64in pilot), #10 (1/8in pilot) and #12 (1/8in pilot) replacement inserts for drill and drive
For use with compact drill and driver
Replacement countersinks
Most popular sizes
General | |||
|---|---|---|---|
Type | Countersink | Package Quantity | 4 |
Material | High-speed steel | Shank Type | Hex |
Dimensions | |||
|---|---|---|---|
Bit Diameter (Inches) | 1/8-in | Bit Length | 1-5/8-in |
Bit Diameter (Letter) | Assorted | Maximum Drilling Depth | 1-1/2-in |
Bit Diameter (mm) | Assorted | Shank Size | 1/4-in |
Bit Diameter (Number) | Assorted | ||
Features | |||
|---|---|---|---|
Heavy Duty | No | Set/Individual | Set |
Right/Left Hand | Right handed | Tip Geometry | 118-degree split-point |
Compatibility | |||
|---|---|---|---|
Compatible Tool | Drills/Impact drivers | For Use on Fiberglass | No |
For Use on Metal | No | For Use on PVC | Yes |
For Use on Wood | Yes | For Use on Stainless Steel | No |
Warranty | |||
|---|---|---|---|
Warranty | None | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | |||
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 20121600 | ||
Check out the Best Selling Twist Drill Bits on Lowes.com
Ratings may include incentivized customer reviews.
What Customers Are Saying
The product received mixed reviews. Many customers praised the quality and performance, noting the bits were sharp, made clean countersinks, and had a useful adjustable depth feature. However, some experienced issues with durability, reporting the bits broke or became dull after limited use, especially when drilling into harder woods. A few felt the pilot holes were not long enough for one-step drilling and countersinking. Overall, the consensus is this is a good quality, affordable set that works well for softer woods, but may not hold up as well for more demanding applications.
Customer review summary generated by AI, including incentivized reviews.This set is exactly what I needed and works perfectly except for the Allen set screws sometimes come loose
Verified Purchaser
Counter sink drill bit
They work really well.
Verified Purchaser
Inexpensive and worked well
Inexpensive, worked well
Verified Purchaser
Awesome fit with the Kobalt flip driver
Great price for these option pieces
Verified Purchaser
good but caution...
the quality seems good but avoid by impatience; CUT the package open. fight the urge to use the bits themselves by bending the cardboard piece. I bent 3 of the bits!!
But functions but not with socket.
Bit function as advertised but does not work well with holding assembly.
Verified Purchaser
Total Junk
Bought these 6 May 26. Opened the package, put in drill. Not one of the 4 turn straight. they wobble almost 1/4" at the tip. I cannot remember a time in my life I have bought such a terrible product. Please don't waste your time or money on this junk. Shame on you Kobalt.
Quality product
New, in package purchase. Worked well, durable
Verified Purchaser
10 Questions
4
Answers
1
Answer
1
Answer
1
Answer
1
Answer
1
Answer
Do these go directly in drill chuck or do these go with an adapter. Seems like they need to be put into some that fits into a drill.
Sam84 on June 29, 20250
Answers
What is the width of the countersink on #12
Anonymous on February 3, 20210
Answers
What is the width of the countersink on #12
Anonymous on February 3, 20210
Answers
What is the diameter of the countersink/counterbore component of the bits?
Anonymous on May 29, 20200
Answers