Quick Adjust Auto Lock Depth Stop Countersink Drill Bit Set for Woodworking

Make woodworking projects easier with this adjustable countersink drill bit set.

Designed for controlled drilling and consistent countersinking, this 4-piece set helps you prepare screw holes for furniture assembly, cabinet installation, and everyday DIY woodworking projects.

Features

01 | Adjustable Depth Control

Set your preferred drilling depth from 0.20–0.98 in (5–25 mm) to help create consistent countersunk holes without repeated guesswork.

The adjustable depth setting makes it easier to maintain consistent drilling results across multiple woodworking tasks.

02 | Precision Bearing Limit Ring

The bearing limit ring helps control drilling depth while reducing friction against the wood surface for smoother operation.

It provides added control when preparing screw holes in furniture panels, cabinets, and other woodworking materials.

03 | 4-Blade Cutting Design

The 4-blade cutting design removes material efficiently and helps create clean, recessed openings for screw heads.

Designed for countersinking and wood screw installation, it helps prepare a neat finish for furniture assembly and DIY woodworking projects.

04 | Four Drill Bit Sizes

Includes four drill bit sizes to accommodate different woodworking tasks and screw-hole requirements:

• 0.11 in (2.8 mm)
• 0.13 in (3.2 mm)
• 0.14 in (3.5 mm)
• 0.16 in (4.0 mm)

Choose the appropriate size based on your project and screw dimensions.

05 | Designed for Woodworking

Made with a durable aluminum-alloy body and a 1/4-inch hex shank, these adjustable countersink drill bits are designed for use with compatible drills and bit holders.

Suitable for furniture assembly, cabinetry, home improvement, DIY woodworking, and other everyday wood-drilling applications.

Product Specifications

• Product Type: Adjustable Countersink Drill Bit Set
• Quantity: 4 Pieces
• Drill Bit Sizes: 0.11 / 0.13 / 0.14 / 0.16 in (2.8 / 3.2 / 3.5 / 4.0 mm)
• Adjustable Drilling Depth: 0.20–0.98 in (5–25 mm)
• Body Material: Aluminum Alloy
• Shank Type: 1/4-Inch Hex Shank
• Cutting Design: 4-Blade Countersink
• Depth Control: Adjustable Bearing Limit Ring
• Application: Woodworking, Furniture Assembly, Cabinetry, and DIY Projects

Package Includes

• 1 × 2.8 mm Countersink Drill Bit
• 1 × 3.2 mm Countersink Drill Bit
• 1 × 3.5 mm Countersink Drill Bit
• 1 × 4.0 mm Countersink Drill Bit

Important Notes

• Choose the appropriate drill bit size based on the screw and wood material.
• Confirm that your drill or bit holder supports a 1/4-inch hex shank before use.
• Use suitable drilling speed and pressure for the material being worked on.
• Wear appropriate eye protection and secure the workpiece before drilling.
• Manual measurements may vary slightly.