7-Pc Tapered Countersink Drill Bit Set with Stop Collars | HSS

$42.13 $47.63

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7-Piece Tapered Countersink Drill Bit Set with Adjustable Stop Collars

Achieve perfectly flush screw finishes every time with this professional-grade 7-Piece Tapered Countersink Drill Bit Set by Binoax. Engineered for woodworking enthusiasts and professionals alike, this comprehensive kit lets you drill pilot holes, countersinks, and counterbores in a single pass — saving you time and delivering clean, precise results.

Made in Mainland China.

Why Choose This Countersink Drill Set?

3-in-1 Operation: Drills the pilot hole, clearance hole, and countersink all at once — no need to swap bits mid-project.
Adjustable Stop Collars: Each tapered bit comes with a sliding collar stop so you can precisely control the depth of your pilot hole and countersink every time.
Tapered Design: Tapered drill bits provide superior gripping power versus standard straight bits, reducing the chance of screw cam-out and wood splitting.
Deburring Capability: Use these countersink bits to remove burrs left from drilling or tapping operations, improving surface finish and eliminating sharp edges.
High Speed Steel (HSS) Construction: Durable, heat-resistant HSS material keeps edges sharp through extended use on hardwoods and softwoods.
CE Certified: Meets CE safety standards for quality assurance.
Wooden Storage Box Included: Keeps all 22 pieces organized and protected between jobs.

What's Included (22-Piece Set)

7 × Tapered Drill Bits
7 × Countersink Bits
7 × Adjustable Collar Stops
1 × Hex Wrench Key
1 × Wooden Storage Box

Size Chart

Screw Size	Bit Diameter	Chamfer Dimension
#5	1/8" (3.18 mm)	9.5 mm
#6	9/64" (3.58 mm)	9.5 mm
#7	5/32" (3.97 mm)	9.5 mm
#8	11/64" (4.37 mm)	9.5 mm
#9	3/16" (4.76 mm)	9.5 mm
#10	13/64" (5.15 mm)	12.5 mm
#12	7/32" (5.56 mm)	12.5 mm

Ideal For

Furniture making and cabinetry
Deck building and outdoor woodworking
General carpentry and DIY home projects
Anywhere a flush or recessed screw head finish is required

Frequently Asked Questions

Q: What screw sizes is this tapered countersink drill set compatible with?

A: This 7-piece tapered countersink drill bit set is designed for screw sizes #5, #6, #7, #8, #9, #10, and #12 — covering the most commonly used wood screw sizes for cabinetry, furniture, and general woodworking projects.

Q: Can I use this countersink drill set on hardwoods?

A: Yes. The bits are made from High Speed Steel (HSS), which is durable and heat-resistant, making them suitable for use on both softwoods and hardwoods. The tapered design also helps reduce splitting in dense wood grain.

Q: How do the adjustable collar stops work?

A: Each tapered drill bit includes a sliding collar stop that can be positioned along the bit shank and locked in place using the included hex wrench. This allows you to set a precise drilling depth so every countersink hole is consistent across your entire project.

Q: Is a storage case included with the set?

A: Yes! The set comes with a wooden storage box to keep all 22 pieces — 7 drill bits, 7 countersinks, 7 collar stops, and 1 hex wrench — neatly organized and protected when not in use.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.

We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.