FILES
BAHCO
Description of Bahco files
It is the shape and size of the workpiece, the material from which it is made and the desired finish that determine the choice of file. On the following pages you will find information on the areas of application of the different files. Hand files are divided into four main areas: engineering files, needle ® files, sharpening files and milled files (including PANSAR blades). The Bahco range covers all of these areas meeting the requirements of most national and international standards with ample margin.
Type/Shape
The different names given to files vary according to their shape and use. The most common names are: hand, flat, half round, three square, round, square, knife and double edge.
Length
File length
The Bahco range includes files from 4” (100 mm) in length to 14” (350 mm), depending on type. The most suitable file length depends entirely on the work to be done. The length of the file is always given excluding the tang, with exception of needle files where the total length includes the tang.
Tooth type and cut
Single
Double
Diagonal
Pansar
®
“Oberg”
Rasp
For all cut engineering, needle and sharpening files, the coarseness of the cut is given in number of whole teeth per centimetre along the length of the file. The most common degrees of coarseness are bastard, second and smooth. The main rule is that the coarser the cut, the more material is removed. If, however, a particular work operation requires a smooth finish, a file with a smooth cut should be chosen.
Milled
ISO Standard SO Standard O Standard
cm
The toothing of a file can vary in many different ways. Different types of cut are chosen depending on the work material, the desired rate of material removal and the desired finish. The most common cuts are: ® single cut, double cut, Öberg cut, diagonal cut, milled cut, PANSAR and rasp cut.
®
For diagonal files, milled files and PANSAR blades, the degree of coarseness is given in number of whole teeth per inch (“). The coarseness of the rasps is given in number of tooth tips per cm2.
inch
cm2
FILES
BAHCO
Choose a file according to the work operation Single cut
Double cut Bastard
Second
Ă–berg cut
Diagonal
Milled Pansar
Rasp
Ă–berg cut
Diagonal
Milled Pansar
Rasp
Smooth
Fine filing Sharpening Deburring Edging Rough filing Material removal
Choose a file according to the work material Single cut
Double cut Bastard
Second
Smooth
High alloy steel Unhardened steel Cast iron Brass, bronze Aluminium Wood and hard plastics
= best choice, recommended = good choice, adequate
FILE HANDLE SELECTION
File handle selection Engineering files and rasps Shape
Code
4"
1-100 1-102 1-104 1-106 1-110 1-111 1-143 1-160 1-170 1-210 1-230 1-250 1-320 6-342 6-345
5,2
5,2 5,2
4,5" 5"
6"
7"
05 04
04
3,2 3,2 5,2 3,2
8"
10" 12" 14"
09 05
09
13
13
09 09 09
13 13 13
13
09 07 10 09 10 09 09 09 10
12 08 08 13 08
13
09 09 06 06 05 07 09 05 09 09 09 05
05 04 04 04 04 05 04 05 06
13
13 13
13 13
Sharpening files Shape Code 166 167 4-138 4-140 4-142 4-144 4-183 4-186 4-187 4-188 4-192 4-261 4-262 4-264 4-265 4-270 4-272
4"
4,5" 5"
6"
7"
8"
10" 12" 14"
C 06 04 06 04 06 04 06 06 5,2 04 04 04 07 07 3,2 3,2 3,2 04 04 04 3,2 3,2 3,2 3,2 04 04 3,2 3,2 3,2 3,3 04 04 07 07 05 09 3,2 05 09 05 09 09 04 05
09 09 09 10
08
09
13
12