OPERATION
INSTALLING BITS
See Figure 9.
■Lock the switch trigger by placing the direction of rotation selector in center position. See Figure 4.
■Open or close chuck jaws to a point where the opening is slightly larger than the bit size you intend to use. Also, raise the front of the drill slightly to keep the bit from falling out of the chuck jaws.
■Insert drill bit straight into chuck the full length of the jaws as shown in figure 10.
■Tighten the chuck jaws on the drill bit.
Note: Rotate the chuck body in the direction of the ar- row marked LOCK to tighten chuck jaws.
■Do not use a wrench to tighten or loosen the chuck jaws.
WARNING:
Make sure to insert drill bit straight into chuck jaws. Do not insert drill bit into chuck jaws at an angle then tighten, as shown in Figure 9. This could cause drill bit to be thrown from drill, resulting in possible serious personal injury or damage to the chuck.
REMOVING BITS
See Figure 9.
■Lock the switch trigger by placing the direction of rota- tion selector in center position. See Figure 4.
■Loosen the chuck jaws from the drill bit.
Note: Rotate the chuck body in the direction of the ar- row marked UNLOCK to loosen chuck jaws.
■Do not use a wrench to tighten or loosen the chuck jaws.
■Remove the drill bit from the chuck jaws.
UNLOCK
(RELEASE)
22 
20
18
16
LOCK
(TIGHTEN)
Fig. 9
2 2
16 
Fig. 10
14