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OPERATION
DRILLING SPEEDS
There are a few important factors to keep in mind when determining the best drilling speed: material type, hole size,
drill bit or cutter type, and desired quality level. Smaller drill bits require greater speed than larger drill bits. Softer
materials require greater speed than harder materials. See page 14 for recommended speeds for particular materi-
als.
DRILLING METAL
• Use metal-piercing twist drill bits.
• It is always necessary to lubricate the tip of the drill with oil to prevent overheating of the drill bit.
• All metal workpieces should be clamped down securely. Any tilting, twisting, or shifting causes a rough drill hole,
and increases the potential of drill bit breakage.
• Never hold metal workpiece with your bare hands. The cutting edge of drill bit may seize workpiece and throw it,
causing serious injury. The drill bit will break if the metal piece suddenly hits the column.
• If the metal is flat, clamp a piece of wood under it to prevent turning. If it cannot be laid flat on the table, then it
should be blocked and clamped.
DRILLING WOOD
• Brad point bits are preferred. Metal piercing twist bits may be used on wood.
• Do not use auger bits. Auger bits turn so rapidly that they can lift the workpiece off of the table and whirl it around.
• Always protect the drill bit by positioning the table so that the drill bit will enter the center hole when drilling
through the workpiece.
• To prevent splintering, feed the drill bit slowly right as the bit is about to cut through to the backside of the work-
piece.
• To reduce splintering and protect the point of the bit, use scrap wood as a backing or a base block under the
workpiece.
FEEDING THE DRILL BIT
• Pull down on the feed handles with only enough force to allow the drill bit to cut.
• Feeding too rapidly might stall the motor, cause the belt to slip, damage the workpiece, or break the drill bit.
• Feeding too slowly will cause the drill bit to heat up and burn the workpiece.
MAINTENANCE
WARNING! For your safety, turn the switch off and remove the plug from the power supply before maintain-
ing or lubricating the drill press.
Vacuum sawdust or metal shavings that accumulate in and on the motor, pulley housing, table, and work surface.
Apply a light coat of paste wax to the column and table to help keep these surfaces clean and rust-free.
The ball bearings in the spindle and the V-belt pulley assembly are greased and permanently sealed. Pull the spindle
down and oil the spindle sleeve moderately every three months.
Lubricate the table bracket and locking knobs if they become difficult to use.
CAUTION: All servicing of the drill press should be performed by a qualified service technician.
17
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