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close this bookFormulae and Tables - Wood / Textbooks for Vocational Training
close this folder7. Hand Tools
View the document(introduction...)
View the document7.1. Measuring and Marking Tools
View the document7.2. Sawing Tools
View the document7.3. Planing Tools
View the document7.4. Mortising and Ripping Tools
View the document7.5. Drilling and Boring Tools
View the document7.6. Rasps and Files
View the document7.7. Other Tools

7.6. Rasps and Files

Rasps and files are hand tools for flattening and smoothing. Rasps have coarser cutting edges, files have finer ones.

Parts of rasps and files


Figure 11 Parts of rasps and files

Kinds and dimensions of rasps

Tool

Length in mm

Cross-section in mm

Application

flat rasp



1 width, 2 thickness

200...350

20 × 5...36 × 8

Rasps serve for coarse smoothing of round portions and recesses.

half-round



1 width, 2 thickness

200...300

18 × 6...30 × 10


round rasp



1 width

200...250

diameter 8 and 10 mm


Kinds of dimensions of files

Tool

Length in mm

Cross-section in mm

Application

rectangular file



1 width, 2 thickness

200 and 250

20 × 3.5; 25 × 4

for fine smoothing of round portions and recesses, reworking of rasped surface

flat/round file



1 width, 2 thickness

like rectangular file



triangular file



1 width

100...200

side length 6...17

especially as saw sharpening file, edge angle 60°, edges slightly rounded for machining the tooth gullet

Special kinds, e.g. as special saw and mill files

Recommendations for maintenance and use

Use only tools the tangs of which are straightly and firmly seated in the haft (stab injuries). Work in grain direction, if possible. Choose tooth spacing*) according to the wood quality (use files with coarse cut for soft or damp wood). Clean the tools from impurities by dipping them into hot water, brush them with a hand brush. Clean metal files with file brushes made of fine copper wires.

*) Cuts: Cutting edges lying closely one after the other and recessed or cut into the metal base body by machine.