Download Print this page

Selecting The Direction Of Rotation; Switching On And Off; Drilling In Wood; Operating Instructions - Black & Decker DR350FD Instruction Manual

3/8 inch (10mm) drill
Hide thumbs


Table of Contents
90536545 DR350FD DRILL

Operating Instructions

WARNING: To reduce the risk of serious personal injury, read and follow all safety
warnings and instructions prior to using tool.
WARNING: It is important to support the work properly and to hold the drill firmly
to prevent loss of control which could cause personal injury. If you have any
questions on how to properly operate tool, call: 1-800-544-6986.
WARNING: Do not attempt to tighten drill bits (or any other accessory) by
gripping the front part of the chuck and turning the tool on. Damage to the chuck and
personal injury may occur when changing accessories.
WARNING: To reduce the risk of injury, always unplug drill from power supply before
making any adjustments or changing accessories.
WARNING: To reduce the risk of injury, let the tool work at its own pace. Don't overload.

Selecting the direction of rotation

For drilling and for tightening screws, use forward (clockwise) rotation. For loosening
screws or removing a jammed drill bit, use reverse (counterclockwise) rotation.
Note: The direction of rotation is also depicted by an arrow on the drill housing.
WARNING: Never change the direction of rotation while the motor is running.
• To select forward rotation, push the forward/reverse slider (3) to the right (when viewed
from the chuck end).
• To select reverse rotation, push the forward/reverse slider (3) to the left (when viewed
from the chuck end).

Switching on and off

• To switch the tool on, press the variable speed switch (1). The tool speed depends on
how far you press the switch.
• For continuous operation, press the lock-on button (2) and release the variable speed
switch. This option is available only at full speed.
• To switch the tool off, release the variable speed switch. To switch the tool off when in
continuous operation, press the variable speed switch once more and release it.
WARNING: The drill should only be locked ON when it is held stationary in a drill press
stand or other means; NOT BY HAND! Never unplug the tool with the locking feature
engaged. To do so will cause the tool to start immediately the next time it is plugged in.
• Always unplug the drill when attaching or removing accessories. When attaching
accessories in the drill chuck, it is important to securely tighten the chuck using all three
holes to prevent slippage. When using a keyless chuck, hand tighten firmly.
• Use sharp drill bits only.
• Support and secure work properly, as instructed in the Safety Instructions.
• Use appropriate and required safety equipment, as instructed in the safety instructions.
• Secure and maintain work area, as instructed in the safety instructions.
• Run the drill very slowly, using light pressure, until the hole is started enough to keep the
drill bit from slipping out of it.
• Apply pressure in a straight line with the bit. Use enough pressure to keep the bit biting
but not so much as to stall the motor or deflect the bit.
• Hold the drill firmly with two hands to control its twisting action.
• Drills equipped with a side handle must be used.
• Minimize stalling on breakthrough by reducing pressure and slowly drilling through the
last part of the hole.
• Keep the motor running while pulling the bit out of a drilled hole. This will help reduce
• Use a cutting lubricant when drilling metals. The exceptions are cast iron and brass which
should be drilled dry. The lubricants that work best are sulphurized cutting oil or lard oil.
• When using twist drill bits to drill holes in wood, it will be necessary to pull the bits out
frequently to clear chips from the flutes.

Drilling In Wood

Holes in wood can be made with the same twist drill bits used for metal or with spade bits.
These bits should be sharp and should be pulled out frequently when drilling to clear chips
from the flutes.
7:37 AM
Page 7

Hide quick links:


Table of Contents

  Related Manuals for Black & Decker DR350FD