OPERATION
BIT SELECTION
WARNING:
Do not use bits larger than the ones listed for HIGH (3) speed in the chart below when drilling at HIGH speed. Using a bit that is too large for high speed applications can result in serious personal injury and can cause damage to the tool.
Speed | Type of Bit / Drilling in Wood | Type of Bit / Drilling in Steel |
LOW (1) - High torque | Bits up to 1 in. twist | |
applications |
|
|
MEDIUM (2) | Bits up to 3/4 in. twist | |
HIGH (3) - Low torque | Bits up to 1/2 in. twist | |
applications |
|
|
NOTE: Always use the drill in LOW (1) speed when high torque is needed. Do not use HIGH (3) Speed for a high torque job.
BIT BINDING
See Figure 8.
If the bit binds, the drill will suddenly react in the opposite direction of the rotation of the bit.
To reduce the chances of bit binding:
nAlways use sharp bits.
nUse the proper bit for the application.
nSelect the correct speed for the size bit you are using.
nAvoid drilling in warped, wet or knotty material.
nAvoid drilling in workpieces that could contain hidden fasteners or other foreign objects.
WARNING
This tool delivers high rotational forces. Never use your body to brace the drill. Never put your hands or other body parts between the part of the drill being braced and the object it is being braced against. Doing so can result in serious personal injury.
DIRECTION OF
REACTION
DIRECTION OF
ROTATION
Fig. 8
13
