Blade Selection - Clarke METALWORKER CBS7MC Operation And Maintenance Instruction

The Cutting Speed Rate Recommendation Chart that follows offers guidelines
only for various metals, given in feet per minute (FPM) and meters per minute
(MPM). Choose the speed closet to the number shown in the chart.
Material
Carbon Steel
Tool Steel
Alloy Steel
Free Machining
Stainless Steel
Angle Steel
High Speed Tool
Steel
Mold Steel
Cold Work Tool
Steel
Hot Work Tool
Steel
Water Hardened
Tool Steel

BLADE SELECTION

TOOTH PITCH
Usually measured as TPI (teeth per inch), tooth pitch determines the size/
number of the teeth. More teeth per inch (fine pitch) will cut slower but
smoother, while fewer teeth per inch (coarse pitch) will cut rougher but faster.
As a general rule, choose blades that will have at least three teeth in the
material at all times. Use fine pitched blades on harder metals and coarse
pitched blades on softer metals. When selecting blades blades, refer to the
above chart and following diagram for recommended blade tooth (TPI) and
speed (FPM) based on workpiece material.
Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
Speed FPM (MPM) Material
196 - 354
(60 - 108)
203
(62)
111 - 321
(34 - 98)
150 - 203
(46 - 62)
180 - 220
(54 - 67)
75 - 118
(25 - 36)
246
(75)
95 - 213
(29 - 65)
203
(62)
246
(75)
Oil Hardened Tool
Steel
Stainless Steel
CR Stainless Steel
Thin Tube
Aluminum Alloy
Copper Alloy
Grey Cast Iron
Ductile Austenitic
Cast Iron
Malleable Cast
Iron
Plastic
16
Speed FPM (MPM)
206 - 2132
(62 - 65)
85
(26)
85 - 203
(26 - 62)
180 - 220
(54 - 67)
220 - 534
(67 - 163)
229 - 482
(70 - 147)
108 - 225
(33 - 75)
65 - 85
(20 - 26)
321
(98)
220
(67)