Harbor Freight Tools HEAVY-DUTY 1/2" VSR DRILL 3273 - Manual (Page 11)

Page 11 For technical questions, please call 1-800-444-3353. ITEM 3273
Metal Drilling
1. Use high speed steel, carbide, TiN coated,
or specialty bits for metal drilling.
2. Secure the workpiece to keep it from
moving during the drilling operation.
3. To make starting the hole easier, use a punch
to create a dimple at the hole center.
4. Unless drilling into cast iron or brass
use a cutting lubricant.
5. Start by drilling slowly to keep the bit from
moving away from your starting point.
6. As the hole is established, increase tool speed.
Do not go so fast or use so much pressure
that the bit heats up. This can damage the
bit and create an irregular hole. For hard
metal, use cutting oil to keep the bit cool.
7. Since drilling in metal is a slow operation, you
may lock the Trigger in the ON position to
maintain a constant speed and reduce fatigue.
8. When drilling large holes in metal, start
by drilling a smaller pilot hole, then using
a larger bit for the final size hole.
Wood Drilling
1. Use high speed bits or bits specially
designed for wood drilling, such as
brad point, spade bits, forstner bits, etc.
2. Secure the workpiece to keep it from
moving during the drilling operation.
3. Start by drilling slowly to keep the bit from
moving away from your starting point.
Increase speed as the hole is established.
4. To prevent or reduce “break out” when the bit
penetrates the workpiece, clamp a piece of
scrap material to the back of the workpiece.
5. Do not lock the Trigger in the ON position,
as the bit can easily jam in wood and
the motor must be stopped quickly.
After Use
To prevent accidents, disengage the trigger, disconnect the tool’s power supply, allow the bit to cool
completely, and remove the bit after use. Clean, then store the tool indoors out of children’s reach.
SAFETY
OPERA
TION
MAINTENANCE
SETUP