Square Hole Mortise Drill Bit Set – Carbon Steel, 4-Piece & 6.4-12.7mm
Product Details
Square Hole Mortise Drill Bit Set – Carbon Steel, 4-Piece & 6.4-12.7mm
This set of four square hole mortise drill bits is built for precise, clean mortising in wood. Made from carbon steel with CNC-milled cutting edges, each bit produces smooth, sharply defined holes – ideal for wood joints and cabinetry work.
The set includes four sizes – 6.4 mm, 8 mm, 9.5 mm and 12.7 mm – covering the most common mortise dimensions. The chip-clearing design reduces resistance while drilling and allows faster, more accurate cuts. Note: a drill adapter holder is required for use and is sold separately.
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What You'll Love
- Carbon steel construction – a durable cutting edge that stays sharp through repeated use
- CNC-milled cutting faces – produce clean, smooth square mortise holes with minimal finishing work
- Chip-clearing design – reduces resistance while drilling for faster, controlled results
- Four sizes included (6.4 mm, 8 mm, 9.5 mm, 12.7 mm) – covers the most common mortise dimensions
- Compatible with most standard drills – drill adapter holder required separately
Specifications
- Material: Carbon steel
- Sizes included: 6.4 mm (1/4"), 8 mm (5/16"), 9.5 mm (3/8"), 12.7 mm (1/2")
- What's included: 4 square hole mortise drill bits
- Compatibility: Fits most standard drills via a drill adapter holder (available separately)
- Suitable for: Wood and wood-based materials
- Notes: Drill adapter holder not included; not suitable for metal or masonry
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