Craftsman 315.119100 Operator's Manual page 12

BIT STORAGE
See Figure 7.
When not in use, bits provided with the drill can be placed
in the storage area located on the base of the drill.
INSTALLING BITS
See Figures 8 - 9.
 Lock the switch trigger by placing the direction of
rotation selector in the center position.
 Open or close the 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 the drill bit.
WARNING:
Make sure to insert the drill bit straight
into the chuck jaws. Do not insert the drill bit into the
chuck jaws at an angle then tighten, as shown in fig-
ure 9. This could cause the drill bit to be thrown from
the drill, resulting in possible serious personal injury
or damage to the chuck.
 Tighten the chuck jaws securely on the bit.
NOTE: Rotate the chuck body in the direction of the
arrow marked LOCK to close the chuck jaws. Do not
use a wrench to tighten or loosen the chuck jaws.
REMOVING BITS
See Figure 8.
 Lock the switch trigger by placing the direction of rota-
tion selector in the center position.
 Open the chuck jaws.
NOTE: Rotate the chuck body in the direction of the
arrow marked UNLOCK to open the chuck jaws. Do
not use a wrench to tighten or loosen the chuck jaws.
 Remove the drill bit.
OPERATION
SCREWDRIVER BIT(S)
STORAGE
DRILL BIT
CHUCK
jAWS
12
BIT
UNLOCK
(RELEASE)
LOCK
(TIGHTEN)
RIGHT
WRONG
Fig. 7
KEYLESS
CHUCK
Fig. 8
Fig. 9