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TECHNICAL DATA
1153136-49 Rev.2 2010-04-08
Recommended cutting equipment for Canada
The following is a list of recommended cutting equipment for chain saws 445, 445e, 450 and 450e. The combinations of
powerhead, bar and chain meet all requirements outlined in the CSA Z62.1-03 Chainsaws and Z62.3-04 Chainsaw
Kickback standards.
The guide bar nose radius is determined by either the maximum number of teeth in the nose sprocket or the
corresponding maximum nose radius of a solid bar.
As we are listing the maximum guide bar nose radius, you may use a guide bar with smaller nose radius than in our list.
For guide bars of the same length, all sprocket-nose guide bars of the same pitch and having the same number of
sprocket teeth may be considered to have equivalent kickback energy.
A hard nose bar having the same length and nose radius as a sprocket-nose bar may be considered to have equivalent
or less kickback energy than the sprocket-nose bar.
We recommend that you as replacement use the listed bars and chains or ”Type C Low-Kickback Saw Chains” which
are available at your dealer.
Bar and chain combinations
Note: For the saw chains above (if available) you are free to choose between 0,050" or 0,058" gauge drive links for the
corresponding bar, see the table below
Saw chain filing and file gauges
Bar Chain
Length, inch Pitch, inch
Thickness of drive
links, incH
Max. nose radius Type Drive link count
13 0,325
0,050
10T
Husqvarna H30
56
15 0,325 10T 64
16 0,325 10T 66
18 0,325 10T 72
20 0,325 10T 78
13 0,325
0,058
10T
Husqvarna H21/
Husqvarna H25
56
15 0,325 10T 64
16 0,325 10T 66
18 0,325 10T 72
20 0,325 12T 78
0,050"/1,3 mm H30 H22 H23
0,058"/1,5 mm - H25 H21