Using Cutting Fluid - Promotech BM-21S Operator's Manual

BM-21S
After setting the bevel angle, adjust the bevel width using the depth knob. The
width scale provides only a rough value because the bevel width varies with the angle.
For example, for 10° the maximum width b (Fig. 1) is equal about 18 mm (11/16''),
while the width scale indicates about 9 mm (6/16''). Increasing the depth at this angle
will distort the bevel. The maximum bevel width (b = 21 mm, 13/16'') is obtained for 45°.
The demanded bevel width for the required angle must be determined experimentally
by gradually increasing the penetration of the milling head into the workpiece.

3.1.2. Using cutting fluid

Before bevelling stainless steel, cover the edges of the workpiece with the supplied
oil in the manner shown in Fig. 5.
Oil for stainless steel
Fig. 5. Preparing the edges for bevelling stainless steel
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