Demi Bisaigüe
Description
Also known as a Pontache, mortise axe, or German (or Alsatian) bisaigüe, this is a timber-framing tool that does not rely on striking (percussion). It is used to cut framing joints—such as flitch joints, Jupiter’s cuts, and mortises—or even to shape tenons and pegs.
It is essentially a wood chisel made entirely of C70 carbon steel, featuring a side handle positioned on the left or right, depending on the user's handedness. Its 1.5 kg weight gives it significant momentum, resulting in less fatigue for the same outcome.
general informations
- Blade width: 50 mm
- Length: approx. 500 mm
- Blade length: approx. 110 mm
- Blade thickness: approx. 5 mm
- Weight: approx. 1.8 kg
- Steel: heat treated C70
- Finish: Brushed, treated with camellia oil
- 30-degree cutting edge (standard)
- Blade slightly offset from the handle
- 150 mm long handle
- Left- or right-hand handle available upon request.
Price : 180 euros
Initials : + 5 euros
Indicative prices, subject to change Excluding shipping costs Available to order
The steel
I forge my bisaigües from C70 carbon steel, which achieves a hardness of 59–60 HRC after heat treatment. It is a durable, shock-resistant steel that is easy to sharpen.
Its downside is its susceptibility to oxidation, so it requires care.
Its flat handle, with a cross-section featuring slightly softened edges, ensures a secure grip without causing blisters by the end of the day; if it were round, it would twist in the hand.
Its baseplate is offset towards the handle, allowing it to slide right to the end of the assembly being worked on.
The side bevels are sufficiently obtuse (60 degrees) to ensure good resilience and allow the tool to slide into the acute angles of joints.
I usually use a sharpening angle of 30 degrees, resulting in a razor-sharp edge, though this can be adjusted to your preference.
Leather sheath for unique chisel : 17,5 euros
I also craft leather sheaths reinforced with a stainless steel plate and a wooden U-shaped insert to protect your cutting edges from the hazards of the job site or workshop.
your initials on the tool : + 5 euros
Remember that all the tools I make can be customized, within reason.
to order, please, contact me
Mentions légales et conditions générales de vente
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