Yajisi 5‑Piece 1/4" Hex Shank Countersink Drill Bit Set – 2.8‑4 mm Adjustable, 8 mm Hole, High‑Speed Steel, Versatile for Wood & MDF

Elevate your woodworking precision with the Yajisi 5‑Piece 1/4‑inch Hex Shank Countersink Drill Bit Set. This high‑speed steel collection spans five sizes—from 2.8 mm to 4.0 mm—each featuring an 8 mm hole diameter and an adjustable cutting height between 2.5 mm and 10.5 mm. The robust hex shank design ensures a secure fit on most power drills, including lithium, hand, and bench models, while the six‑pointed handle offers effortless depth control without swapping bits. Ideal for particleboard, MDF, plastic, and softwood, these durable bits deliver clean, accurate holes that resist wear even in demanding conditions. Whether you’re a seasoned woodworker or a DIY enthusiast, this versatile set guarantees consistent performance and long‑lasting reliability for every countersink project.

• Five‑piece 1/4‑inch hex shank set offers 2.8‑4.0 mm drill diameters with 8 mm hole depth, allowing precise countersinking for screws up to 10.5 mm deep.
• High‑speed steel construction and heat treatment give each bit exceptional hardness and wear resistance, ensuring reliable performance in tough wood and composite materials.
• The adjustable depth stop lets you set drilling depth from 2.5 mm to 10.5 mm without changing bits, saving time and keeping holes uniform for any screw length.
• Designed for most power drills, the 1/4‑inch hex shank fits lithium, hand, and bench drills, making it a versatile choice for both hobbyists and professionals.
• Ideal for particleboard, MDF, plastic, and softwood, this set delivers clean, accurate holes that reduce splintering and improve finish quality.