Square holes, straight from your drill.
A hollow chisel wraps a spinning auger — one clears the waste, the other shears the corners perfectly square. Clean mortise-and-tenon joints, no dedicated machine.
One plunge.
Four clean corners.
The hollow square chisel and the internal auger work as one: the auger clears the bulk while the chisel shears the four corners perfectly square.
Mark, plunge, shift over, plunge again — chain the cuts and a full-length mortise takes seconds, not the ten minutes it takes to pare one by hand.
Skip the
$300 mortiser.
You don't need a dedicated machine eating half your bench. These bits drop straight into any drill press, and the adapter bracket clamps them to a hand drill or drill stand.
Same square holes — a fraction of the cost and the space.
Built to
bite hardwood.
Forged from high-carbon steel and ground to a keen edge, the chisels cut clean through oak, maple and ash and keep cutting.
Back out to clear chips on deep plunges and let the auger do the work — no burning, no wandering.
Walls so clean
the tenon drops in.
Square, splinter-free faces mean your mortise-and-tenon joints seat tight the first time — no shimming, no fighting the fit.
Consistent depth off your drill's stop gives you matching mortises every time.
One set for
every joint.
From 1/4" drawer joinery to 5/8" doors and structural timber — pick the set that covers your work, or the bracket kit that turns the drill you own into a full mortiser.
At home on
any drill.
Whether you run a bench-top drill press or clamp a hand drill into a stand, the adapter bracket keeps the bit square to the work so every hole lands true.
Find your size.
Tap a size to see its dimensions and which set it comes in.
The same mortise,
without the mallet.
Chisel & mallet
- ✕Drill overlapping round holes, then pare every corner square by hand
- ✕Uneven depth and walls — joints need shimming to fit
- ✕Ten-plus minutes per mortise, and it's tiring
- ✕Skill-dependent — easy to overcut and ruin the joint
Plunge & done
- ✓Mark, plunge, repeat — square corners in a single pass
- ✓Consistent depth off your drill's stop — matching mortises
- ✓Seconds per hole, clean walls, tenons drop right in
- ✓Repeatable for anyone — the chisel sets the corners
Questions, answered.
Cut your first square hole today.
Turn the drill you already own into a mortiser. Pick your set and get cutting — clean, square joints, no chisel-and-mallet guesswork.