KKmoon 1/4-inch Woodworking Mortising Chisel Square Drill Bit Professional Square Hole Extended Drill Countersink Bit Multifunctional Woodworking Drill (6.4mm)

Features:
Thicken drilled core for fast wood chip removing.
The square drill bit with heat treatment, features of high hardness and rust-proof.
Large angle U-shape designed to greatly improve the hole drilling efficiency.
Well made and extremely sharp to help drill clean and accurate square holes in wood.
With a semi-transparent plastic case to store the drill.