7pcs Countersink Drill Bit Set 3-10mm - High-Carbon Steel Woodworking Bits

Drill smooth pilot holes and clean countersinks in a single operation with this 7-piece countersink drill bit set. Forged from high-carbon steel with titanium-coated pilot bits and surface-quenched flutes, this 3–10mm set ensures high hardness, wear resistance, and flush screw seating in timber, plastic, and soft materials.

Features

• Dual Drilling & Countersinking: Simultaneously drills pilot holes and countersinks for flush or sub-surface screw placement.

• Forged High-Carbon Steel: Surface-quenched for exceptional hardness, durability, and long-lasting cutting performance.

• Titanium-Coated Pilot Bits: Smooth, fast drilling with enhanced heat resistance and reduced friction.

• Adjustable Depth Stop: Included hex wrench allows easy adjustment of the countersink collar to control drilling depth.

• Universal Tool Compatibility: Ideal for use in power drills, bench drills, and drill presses.

Specifications

• Size Range: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm

• Materials: Titanium-Coated High-Speed Steel (Pilot) + High-Carbon Steel (Countersink Collar)

• Surface Treatment: Electroplated / Quenched Finish

• Color: Gold & Gray

• Applications: Wood, Timber, MDF, Plywood, Plastics, Soft Metals

Package Includes

• 7 x Countersink Drill Bits (3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm)

• 1 x Hex Wrench

Usage Tips

Loosen the set screw with the included hex wrench to adjust pilot bit depth to match your screw length. Use moderate drill speeds for clean, tear-out-free countersunk holes.

Shipping & Store Information

• Dispatch: Orders dispatched within 1–2 business days directly from our supplier warehouse.

• Pickup: Strictly NOT available.

• Transit Protection: We take full responsibility for items lost or damaged during transit.

• Payment & Invoicing: Payment required within 7 days. Official GST tax invoice provided upon request.