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9. These units have a 8:1 feed ratio: i.e. for every pound applied to the
handle, you create eight pounds on the drill point. Even large bits only
require a small amount of pressure on the handle. Example: 20 Pounds
on the handle creates 160 Pounds on the drill point.
When feeding the cutter into the material, apply only enough force to
produce a curled chip. Applying too little force will result in small bro-
ken chips and increased cutting time. Applying too much force will
cause overheating of the cutter resulting in short cutter life. Overheat-
ing of the cutter can be noticed when cutter and chips turn brown or
blue. Excessive force can cause the cutter to slow down to a point
where cutting time will increase. The use of cutting lubricants will
reduce cutting heat and increase cutter life
Use less feed pressure when slotting or notching because there is
less support for the cutting edges in these situations.
Fig. 9
To reduce the risk of injury, always keep hands, rags, clothing,
etc. away from moving parts and chips. Do not try to remove
chips while the cutter is rotating. Chips are sharp and can pull
objects into moving parts (see Fig. 9).
WARNING!
8. Start the drill motor by pulling the drill on/off switch to the "ON" position.
10. Keep constant pressure throughout the entire operation to
prevent chips and burrs from falling under the cutting edges.
Cutting debris under the cutter can make cutting difficult or
impossible.
11. When the cut is complete, withdraw the cutter while the drill spindle
is still rotating.
12. Stop the drill motor by pushing in the drill on/off switch to the "OFF"
position.
13. When the drill spindle has stopped rotating, use a pliers to remove
cutting debris and chips from the cutter and spindle. Use care to
avoid damaging the cutter teeth.
14. If the slug is still present in the cutter, rotate the feed handle to
highest position. This will eject the slug from the cutter.
The center pin is spring loaded. Provide protection from ejected
slug for people and property below cutting area.
15. Make sure you have a firm grip on the tool before turning off the
magnet.
Push the magnet switch to the "OFF" position. The magnet
indicator light will turn off.
Excessive force will break magnet free.
WARNING!