TM 9-3405-215-14&P
FIG. 15. STARTING HOLE FOR SHARP CONTOUR
CUTTING.
Saw an internal contour by cutting band, drilling starting
hole, running band through hole, then welding band. Use
Disk cutting accessory if contour is a radius. See Fig. 24.
NOTE
You will insure a better weld on band
which passes through workpiece
hole by insulating the band from
contact with workpiece or table.
Drilled starting hole's diameter is determined by band
size. Widest possible band should be used for curve
cutting. Attempting to cut too small a radius with too
wide a band will cause it to bind. It may also cause
lower wheel tire grooving.
Radii chart below shows minimum possible radii cuts with
varying band widths. See Fig. 16. Use a heavy gage
blade for heavy workpiece contour sawing. Radii chart
recommendations are based on sawing relatively thin
stock. Use a narrower saw band than recommended when
sawing stock more than 1 inch (25 mm) thick.
FIG. 16. MINIMUM RADII CUTS.
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