Dieter Schmid's Fine Tools

Short Auger Bits for Use with Electric Drill or Jaw Brace

Short Auger Bits
From left to right: 3 mm (1/8 in.), 6 mm (1/4 in.), 10 mm (3/8 in.), 19 mm (3/4 in.), 30 mm (1 1/4 in.).
Suitable for power drill and jaw brace.

Instructions for use with non-electric devices

Ideal for four-jaw braces in conjunction with an adapter.
Find these adapters here

Other possibilities:
jaw brace
Important: Without adapter to be used only in braces with two- or three-jaw chucks! Shown at left is an old-fashioned brace with two-jaw chuck driving the 19 mm (3/4 in.) hex-shank auger bit. This set-up drilled easily through larch with no undue stress on the chuck jaws.
Using too much force (torque) can damage jaws or recesses, or both. It is important to use only as much force as is necessary for the bit to cut into the material. Our drilling trials in larch have demonstrated that this is possible.
Kuri Kuri
These bits are very well suited for the small Japanese brace Kuri Kuri. We recommend use of bits no larger than 12 mm (1/2 in.). It is possible to use larger bits, but drilling is slow and rather tedious.
Handbohrmaschinen von Schröder
The wheel braces made by Schröder, are also well-suited for use with hex-shank auger bits. Again, we recommend bits no larger than 8 mm (5/16 in.). Use of larger bits is possible but makes drilling slow and difficult.
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