21
Generally, smaller drill bits require greater speed than large drill bits. Softer
materials require greater speed than harder materials. See the following table
for approximate recommended speeds for the workpiece material.
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1
DRILLING SPEEDS
Important factors when determining the best drilling speed are:
• Material type
• Hole size
• Drill bit or cutter type
• Quality desired
Содержание METALWORKER CDP401B
Страница 8: ...8 MACHINE LAYOUT ...
Страница 29: ...29 COMPONENT PARTS HEAD ASSEMBLY ...
Страница 31: ...31 DECLARATION OF CONFORMITY ...
Страница 32: ......
