Grizzly G0756 Manuale Utente
Model G0756 (Mfg. Since 2/13)
-25-
Selecting Spindle
RPM
use the proper spindle speed and feed rate to
reduce strain on all moving parts and decrease
risk of operator injury.
reduce strain on all moving parts and decrease
risk of operator injury.
prior to drilling, determine the rpM needed for
workpiece material then set the spindle speed to
the closest available rpM.
workpiece material then set the spindle speed to
the closest available rpM.
To determine the needed RPM:
1. use the table in figure 22 to determine the
speed required for your workpiece material.
figure 22
. Cutting speed table for hss cutting tools.
Note:
For carbide cutting tools, double the cut-
ting speed. These values are a guideline only.
Refer to the
Refer to the
MACHINERY'S HANDBOOK for
more detailed information.
Twist/Brad Point Drill Bits
Soft Wood
Hard Wood
Plastic
Brass
Aluminum
Mild Steel
1/16" – 3/16"
3000
2500
2500
2500
3000
2500
13/64" – 3/8"
2000
1500
2000
1250
2500
1250
25/64" – 5/8"
1500
750
1500
750
1500
600
11/16" – 1"
750
500
1000
400
1000
350
Spade/Forstner Bits
Soft Wood
Hard Wood
Plastic
Brass
Aluminum
Mild Steel
1/4" – 1/2"
2000
1500
9/16" – 1"
1500
1250
1-1/8" – 1-7/8"
1000
750
2–3"
500
350
Hole Saws
Soft Wood
Hard Wood
Plastic
Brass
Aluminum
Mild Steel
1/2" – 7/8"
500
500
600
600
600
500
1" – 1-7/8"
400
400
500
500
500
400
2" – 2-7/8"
300
300
400
400
400
300
3" – 3-7/8"
200
200
300
300
300
200
4" – 5"
100
100
200
200
200
100
Rosette Cutters
Soft Wood
Hard Wood
Plastic
Brass
Aluminum
Mild Steel
Carbide Insert Type
350
250
One-Piece Type
1800
500
Tenon/Plug Cutters
Soft Wood
Hard Wood
Plastic
Brass
Aluminum
Mild Steel
3/8" – 1/2"
1200
1000
5/8" – 1"
800
600
Larger bits turning at slower speeds tend
to grab the workpiece aggressively. This
can result in the operator's hand being
pulled into the bit or the workpiece being
thrown with great force. Always clamp the
workpiece to the table to prevent injuries.