💯5 PCS Adjustable Countersink Drill Bit Set, 1/4 Inch Quick-Change Hex Shank

Ordinary single countersink bits cannot adjust drilling depth freely. Cheap low-carbon steel bits dull quickly after repeated use and leave rough, cracked holes on wood. Separate wood plug cutters and bit holders are easy to lose, and loose bits slip during operation, affecting cutting precision. Most basic drill kits lack storage boxes, causing messy arrangement and inconvenient carrying. This 15pcs adjustable countersink drill bit set adopts  material, equipped with wood plug cutters and magnetic extension bit holder, plus a portable storage case. It can realize adjustable countersink depth, fast bit replacement and neat storage, meeting all your woodworking and carpentry DIY needs.

✨ Key Features 🛠️ Adjustable Countersink Depth
You can freely adjust the sinking depth to make wood screws flush with the wood surface. Effectively avoid protruding screw heads, help you get smooth and tidy finished surfaces for furniture, cabinets and wood crafts.

⚡ 1/4 Inch Quick-Change Hex Shank
Universal 1/4" hex shank supports fast replacement of drill bits. Compatible with most electric drills and impact drivers. No extra tools required for switching bits, greatly improving your work efficiency.

Made of , the cutting edge stays sharp and wear-resistant. It delivers clean and smooth chamfer holes, effectively reducing wood cracking. Perfect for softwood, hardwood, plywood and MDF.

🧰 Multi-functional Bonus Accessories
Comes with 2 wood plug cutters for making wooden plugs to cover screw holes and hide hardware marks. The magnetic extension bit holder firmly locks drill bits to prevent slipping. All accessories can be stored in the hard storage case.

⭐ User Reviews ⭐⭐⭐⭐ Robert K. – Texas, USA
This countersink drill set is absolutely fantastic for my home wood projects! I love the adjustable depth design, screws sit perfectly flat on wood. The bits stay sharp after many uses, the plug cutters work great for hiding screw holes, and the storage box keeps everything well sorted.

⭐⭐⭐⭐ Mark T. – Ohio, USA
Super practical all-in-one woodworking kit. The 1/4 hex shank locks tightly in my drill. Magnetic extension holder prevents bits from falling off while working. All pieces fit nicely in the hard case, no more lost drill bits around my workshop.

📐 Product Specifications
Product Name: 15 PCS Adjustable Countersink Drill Bit Set
Material: S2
Shank: 1/4 Inch Quick-Change Hex Shank
Kit Includes: Adjustable countersink bits, 2 wood plug cutters, magnetic extension bit holder, hard storage case
Core Functions: Wood chamfering, countersinking, wood plug making, screw hole hiding
Features: Adjustable depth, wear-resistant, quick-change shank, magnetic retention, portable storage case
Applicable Material: Softwood, Hardwood, Plywood, MDF
Applicable Scenarios: Furniture production, cabinet installation, deck building, home carpentry DIY

❓ Frequently Asked Questions
Q: Does this drill bit set fit common household electric drills?
A: Yes. Standard 1/4 inch hex shank works for most corded and cordless electric drills, impact screwdrivers.
Q: Can these bits drill metal or concrete?
A: They are specially designed for wood materials. Not suitable for metal, tile or concrete drilling.
Q: Will the drill bits slip during use?
A: The magnetic extension bit holder can firmly secure bits, effectively preventing slipping while drilling.
Q: Is the storage case durable enough?
A: Made of rigid plastic, the storage case has separate slots for each tool. It protects bits and avoids loss.
Q: Are the cutting edges sharp out of the box?
A: Yes. The drill bits are pre-sharpened, ready to use right after opening the package.

🛡️ Shopping Guarantee
Every drill bit set undergoes sharpness test, fit inspection and packaging check before delivery. If you receive dull bits, damaged storage case or missing accessories, please contact customer service within 24 hours for a free replacement or full refund.