Dieter Schmid's Fine Tools
Ring Auger Bits

Ring Auger Bits

Ring Auger Bit - Made in Japan

Ring Auger Bit - Made in Japan The rounded single spur of these bits cut a clean edge of the hole and the chisel-like cutting edge turns around the threaded center and removes chip by chip within the previously cut circle. The thread of the center is large and strong enough to bite into the wood and pulls the bit. You do not have to use any pressure. This bit with large threaded center is unsuitable for power drills. For softwood and European hardwoods such as oak, beech, cherry. All measurements in mm, imperial only approximately!

Diameter mm Diameter inch Total length Spiral length Cutting length Order nr.Price
6 7/32 410 160 190
Order nr. 312220CartPrice € 15.90
8 5/16 460 190 410
Order nr. 312221CartPrice € 16.90
10 3/8 500 220 460
Order nr. 312223CartPrice € 16.90
12   520 230 470
Order nr. 312225CartPrice € 16.90
13 1/2 520 230 470
Order nr. 312226CartPrice € 18.90
16 5/8 560 270 500
Order nr. 312228CartPrice € 22.90
19 3/4 590 300 525
Order nr. 312231CartPrice € 24.90
Diameter Diameter Total length Spiral length Cutting length Order nr.Price
20   590 300 525
Order nr. 312232CartPrice € 24.90
25 1 600 310 530
Order nr. 312236CartPrice € 34.90
30   600 310 530
Order nr. 312239CartPrice € 36.90
35   600 310 520
Order nr. 312241CartPrice € 59.90
38 1-1/2 600 310 520
Order nr. 312243CartPrice € 75.90
Ring Auger Bits from old stock

Ring Auger Bits from old stock These bits have been stocked for several years and have not been used. They come in best condition. Please pay attention to the notes, some have a thicker shaft than the spiral and some do not have edge spurs. If there is no note, they come with two edge spurs. Some spurs have small burrs which must be removed with a file (only from inside please!)
Only to be turned by hand! Enlargement - see also the bits without spurs and the bits with thicker shaft.

Diameter
mm
Diameter
inch (approx.)
Total
length
Cutting length Order nr.Price Notes
8 5/16 470 160
Order nr. 308350CartPrice € 7.50
Short cutting length! Shaft thicker than spirals! Colour: blue

Other sizes not available!

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