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Tip
#22
Horizontal
Boring In Woodworking
(continued)
Click
here for a printer friendly
version of Tip - Pg. 1-3, Pg
4-6, Pg. 7-9
Bits
and Speeds
Because
boring is so similar to drilling, you can use the same bits
and the same speeds. To adjust the Mark V to the correct speed,
refer to Table 11-1.
| Table
11-1: Horizontal Boring Speed Chart |
| Size
of Hole |
Hardwood |
Softwood |
| 1/4"
and less |
H
(1600 RPM) |
I
(1750 RPM) |
| 1/4"
to 1/2" |
F
(1300 RPM) |
G
(1450 RPM) |
| 1/2"
to 3/4" |
D
(1050 RPM) |
E
(1150 RPM) |
| 3/4"
to 1" |
B
(850 RPM) |
C
(950 RPM) |
| Over
1" |
SLOW
(700 RPM) |
A
(750 RPM) |
| Boring
metals (twist bits only)-Slow (700 RPM) |
| Note:
These speeds are for 60 hz. operations. For 50 hz. operations,
refer to Table 1-1. |
Continue
to General Boring
Back to Horizontal Boring Safety
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