Ryobi SDS60 - Manual (Page 14)

14
OPERATION
WARNING :
Be prepared for binding at bit breakthrough. When these
situations occur, the rotary hammer has a tendency to
grab and kick in the opposite direction and could cause
loss of control when breaking through material. If not
prepared, this loss of control can result in possible seri-
ous injury.
 When drilling hard, smooth surfaces, use a center punch
to mark the desired hole location. This will prevent the
drill bit from slipping off-center as the hole is started.
 When drilling metals, use a light oil on the drill bit to keep
it from overheating. The oil will prolong the life of the bit
and increase the drilling action.
 If the bit jams in the workpiece or if the rotary hammer
stalls, stop the tool immediately. Remove the bit from the
workpiece and determine the reason for jamming.
WOOD DRILLING
For maximum performance, use high speed steel bits for
wood drilling.

Select drilling mode.
 Begin drilling at a very low speed to prevent the bit from
slipping off the starting point. Increase the speed as the
drill bit bites into the material.
 When drilling through holes, place a block of wood behind
the workpiece to prevent ragged or splintered edges on
the back side of the hole.
METAL DRILLING
For maximum performance, use high speed steel bits for
metal or steel drilling.

Select drilling mode.
 Begin drilling at a very low speed to prevent the bit from
slipping off the starting point.
 Maintain a speed and pressure which allows cutting
without overheating the bit. Applying too much pressure
will:
• Overheat the rotary hammer;
• Wear the bearings;
• Bend or burn bits; and
• Produce off-center or irregular-shaped holes.

When drilling large holes in metal, start with a small bit,
then finish with a larger bit. Also, lubricate the bit with oil
to improve drilling action and increase bit life.
MASONRY DRILLING
For maximum performance, use carbide-tipped masonry
impact bits when drilling holes in brick, tile, concrete, etc.

Slide adjustment button on rotary hammer left for hammer
drill mode.
 Apply light pressure and medium speed for best results
in brick.
 Apply additional pressure for hard materials such as
concrete.
 When drilling holes in tile, practice on a scrap piece to
determine the best speed and pressure. Begin drilling at
a very low speed to prevent the bit from slipping off the
starting point.
CHISELLING
When using the chisel feature on the rotary hammer, use only
approved chisel bits. The supplied chisel bit will work with
the SDS chuck only. Chisel only approved materials such as
ceramics, concrete, brick, or other masonry.