-32-
Model W1680 (For Machines Mfd. Since 06/22)
O
PE
R
ATIO
NS
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
15000
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
Calculating.Spindle.Speed.
for.Drilling
The chart shown in
Figure
34
is intended as a guide only.
Always follow the manufacturer's speed recommendations
if provided with your drill bits, cutters, or hole saws.
Exceeding the recommended speeds may be dangerous to
the operator or cause damage to the tooling.
The speeds shown here are intended to get you started.
The optimum speed will always depend on various
factors, including tool diameter, drill pressure, material
hardness, quality, and desired finish.
Often, when drilling materials other than wood, some
type of lubrication is necessary.
Wood ........................................None
Plastics ............................Soapy Water
Brass .................. Water-Based Lubricant
Aluminum .......... Paraffin-Based Lubricant
Mild Steel ................ Oil-Based Lubricant
Larger.bit.turning.at.slower.speeds.tend.
to. grab. workpiece. aggressively.. Hands.
can. be. pulled. into. bit. or. workpiece.
thrown.with.great.force..Always.clamp.
workpiece.to.table.to.prevent.injuries.
Figure.34.
Drilling speed chart.
Lubrication.Suggestions