Choosing speeds, Using the drill bit speed chart, Lubrication suggestions – Grizzly G7945/46 User Manual
Page 25

BdYZa<,.)*$<,.)+B[\#H^cXZ($%,
"'("
Choosing Speeds
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
Using the Drill Bit Speed Chart
I]Z X]Vgi h]dlc ^c Figure 20 ^h ^ciZcYZY Vh
V \j^YZ dcan# 6alVnh [daadl i]Z bVcj[VXijgZgh
heZZY gZXdbbZcYVi^dch ^[ egdk^YZY l^i] ndjg
Yg^aa W^ih! XjiiZgh! dg ]daZ hVlh# :mXZZY^c\ i]Z
gZXdbbZcYZY heZZYh bVn WZ YVc\Zgdjh id i]Z
deZgVidg#
I]ZheZZYhh]dlc]ZgZVgZ^ciZcYZYid\Zindj
hiVgiZY# I]Z dei^bjb heZZY l^aa ValVnh YZeZcY
dckVg^djh[VXidgh!^cXajY^c\iddaY^VbZiZg!Yg^aa^c\
egZhhjgZ!bViZg^Va]VgYcZhh!bViZg^VafjVa^in!VcY
YZh^gZY[^c^h]#
D[iZc! l]Zc Yg^aa^c\ bViZg^Vah di]Zg i]Vc lddY!
hdbZineZd[ajWg^XVi^dc^hcZXZhhVgn#
Lubrication Suggestions
LddY$8Vhi>gdc############################################CdcZ
EaVhi^Xh############################################HdVenLViZg
7gVhh###############################LViZg"7VhZYAjWg^XVci
6ajb^cjb##################### EVgV[[^c"7VhZYAjWg^XVci
B^aYHiZZa############################# D^a"7VhZYAjWg^XVci
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.
Figure 20.
9g^aaW^iheZZYX]Vgi#