The Dewalt DC925 is a heavy duty 1/2-inch, cordless hammerdrill/drill/driver. Powered by an 18-volt DC motor that produces 500 watts of power, the DC925 has a patented three-speed transmission to allow matching the drill speed and torque to the application. Its self-tightening 1/2-inch chuck automatically tightens during the drilling process, insuring maximum bit grip. In hammerdrill mode, it can produce 34,000 blows-per-minute for tough masonry drilling. The DC925 weighs 1.13 Kilogram and operates off a rechargeable 18-volt battery pack.
- Skill level:
- Moderately Easy
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Things you need
- DeWalt DC925 cordless drill
- Battery pack
Make sure that the battery pack is fully charged.
Line up the notch inside the drill's handle with battery pack. Firmly slide the pack into the handle until the lock snaps in place.
Remove the battery pack by pressing the two release buttons on opposite sides of the battery pack and sliding the battery pack out of the drill handle.
Clamp a drill bit or other tool in the self-tightening chuck by first locking the trigger in the "OFF" position.
Grasp the chuck sleeve with one hand while using the other hand to hold the tool. Rotate the sleeve counterclockwise to open the chuck far enough to accept the bit.
Insert the drill bit about 3/4-inch into the chuck. Rotate the chuck sleeve clockwise as far as it will turn. As the drill is operated, the chuck will self-tighten onto the bit.
Select the torque and speed setting for your application by sliding the gear lever.
Select position "1", which is furthest to the left, for the highest torque.
Select position "2" in the middle for medium torque and speed.
Select the highest speed setting by turning to position "3" which is all the way to the right.
Three Speed Transmission
Turn the collar to the symbol representing either drilling or hammerdrilling mode according to your application.
Use the gear shifter to select the desired speed/torque range.
Pull the trigger to begin drilling. Apply pressure in a straight line with the bit. Do not push so hard that you stall the motor or deflect the bit.
Hold the drill tightly to control twisting action caused by torque.
Turn the collar to the hammerdrill symbol.
Pull the trigger to begin drilling. Drill straight, keeping the body of the drill in line with the bit. Apply just enough force to keep the drill bit from bouncing.
Use carbide-tipped bits or masonry bits for drilling in masonry.
Select the desired speed/torque range using the gear lever.
Clamp the screwdriver bit in the chuck in the same manner as you would with a standard drill bit.
Make a few test runs driving screws in scrap pieces to determine the proper torque and speed for the size of the screw and the material.
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