Remington r300 Operating Instructions Manual page 8

Safety precautions
6. DO nOt drive power fasteners into concrete less than three
times as thick as the intended power fastener penetration,
within 3" of the edge, within 3" of another power fastener,
or within 3" of a failed power fastener.
WELD
7. DO nOt drive power fasteners into steel base material
less then 3/16" thick, within " of a weld, within 1/" of the
edge, or within 1" of another power fastener.
NO
8. When fastening into masonry walls, always drive into
horizontal mortar joints, nEVEr into vertical mortar joints.
BE CarEFUL, a poorly laid joint may permit too much
penetration and/or unsatisfactory holding power.
OpEratInG tHE tOOL
90˚
1. aLWaYS hold tool perpendicular to work surface.
3"
1X
3X
tOO tHIn
S F
3"
1/2"
3/16" mIn
YES
8
3"
3"
1"
119586