Devvicoo 6PCS Square Hole Drill Bit Set — Perfect Mortises with a Drill Press

Devvicoo 6PCS Square Hole Drill Bit Set — Perfect Mortises with a Drill Press

The Devvicoo 6-piece square-hole drill bit set is designed specifically for mortise-and-tenon woodworking with a drill press and a mortising attachment. These bits are not for handheld drills and are built to create clean, splinter-free square holes in hardwood, MDF, and particle board with precision.

Made from high-hardness 56HRC bearing steel, each bit features heat-treated cutting edges for durability and longer tool life, even when working with dense wood. The U-shaped flute design quickly clears wood chips, reduces friction, and prevents overheating during heavy-duty drilling.

This set includes six essential sizes — 5/8", 9/16", 1/2", 3/8", 5/16", and 1/4" — covering everything from furniture joints to cabinetry and woodworking jigs. When paired with the correct mortising attachment, these bits deliver accurate, professional mortises with minimal effort.

Important: These bits only work with a drill press and mortising attachment. Always power off the machine before changing bits and ensure proper installation before use.

Key Features:
– Designed for drill press mortising machines (not handheld)
– 56HRC bearing steel with heat-treated edges
– U-flute design for fast debris removal
– Clean, precise square holes in wood materials
– Six versatile sizes for woodworking projects
– Durable construction for long tool life