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 CodePrice
6 7/32 410 160 190
Code 312220CartPrice € 15.90
8 5/16 460 190 410
Code 312221CartPrice € 16.90
10 3/8 500 220 460
Code 312223CartPrice € 16.90
12   520 230 470
Code 312225CartPrice € 16.90
13 1/2 520 230 470
Code 312226CartPrice € 18.90
16 5/8 560 270 500
Code 312228CartPrice € 22.90
19 3/4 590 300 525
Code 312231CartPrice € 24.90
Diameter Diameter Total length Spiral length Cutting length CodePrice
20   590 300 525
Code 312232CartPrice € 24.90
25 1 600 310 530
Code 312236CartPrice € 34.90
30   600 310 530
Code 312239CartPrice € 36.90
35   600 310 520
Code 312241CartPrice € 59.90
38 1-1/2 600 310 520 Currently not in stock!
Code 312243Cart Price € 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 CodePrice Notes
8 5/16 470 160
Code 308350CartPrice € 7.50
Short cutting length! Shaft thicker than spirals! Colour: blue

Other sizes not available!

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