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close this bookBoring - Course: Manual Woodworking Techniques. Instruction Examples for Practical Vocational Training
View the document(introduction...)
View the documentPreliminary Remarks
View the documentInstruction Example 5.1.: Holes of Limited Depth
View the documentInstruction Example 5.2.: Bit Stand
View the documentInstruction Example 5.3.: Screw Holes
View the documentInstruction Example 5.4.: Through Holes
View the documentInstruction Example 5.5.: Stool

Instruction Example 5.1.: Holes of Limited Depth

This example serves to practise boring out of faulty spots in solid wood for subsequent setting of end grain dowels.


Planed boards of deciduous (hard) wood and coniferous (soft) wood for various operations.

The boards may have any dimensions but should have defects like loose knots, black knots, resin galls, etc.


Bit brace and Forstner auger bits of various diameters

Auxiliary accessories

Work bench or carpenter's bench, adhesive, end grain dowels of various diameters

Necessary previous knowledge

Properties of wood, influence of wood defects on the use-value properties of the finished workpieces

Sequence of operations


1. Prepare the working place.

Check the boring tools.

2. Put the defective board or part on the work bench.

Surface to be bored must be in horizontal position.

3. Check the right and left sides of the wood for defects.

Find out the wood defects to be bored out.

4. Chuck the Forstner auger bit with the required diameter into the bit brace.

5. Bore out the defective spot.

Hold the boring tools in vertical position and bore out to the necessary depth only (depending on the defects).

6. Glue in the end grain dowel.

Make sure that the direction of the wood grains is correct.

7. Check the surfaces.

Holes of Limited Depth