Rotary Tool
26
Recommended Speeds (cont’d)
High-speed router bits
Soft wood: 10
Hard wood: 8 - 10
Silicon carbide grinding stones
Laminates & plastic: 6
Steel: 10
Aluminum, brass, etc.: 4
Stone: 6
Ceramic: 10
Glass: 10
Abrasive points
Soft wood: 4 - 6
Hard wood: 4 - 6
Steel: 6 - 8
Aluminum, brass, etc.: 4 - 6
Aluminum oxide grinding stones
Soft wood: 10
hard wood: 10
Steel: 8
Aluminum, brass, etc.: 4
Stone: 6
Ceramic: 10
