Craftsman 21914 - 12 in. Drill Press Operator's Manual page 20

I] Makesuretheworktableisfreeofalllooseobjects
andthatthebit is notincontactwiththeworkpiece.
I] Plugelectrical cordintopowersupply andturnswitch
ON.Makesurespindle rotates freely.
I] Slowly lowerdrillbit intoworkpiece. Donotforcethe
bit,letthedrillpressdothework.
I] Once the holeis completed, raisethespring-loaded
feedshaftto itsnormal p osition. Thiswillautomatically
raisethechuckandbit.
DRILLING TIPS
If the hole is large, it's a good idea to drill a smaller pilot
hole before drilling the final one. Your hole will be more
accurately positioned, rounder, and the bits will last
longer.
If the hole is deeper than it is wide, back off occasionally
to clear the chips. When drilling metal also use a coolant.
As you increase the drill size, you may need to reduce the
spindle speed. See speed chart on page 22.
If drilling a through hole, place a scrap piece of wood
between the table and the workpiece. This step will mean
a neater exit hole and protect the table surface.
USING THE LASER
With the laser turned on, the red "X" indicates the exact
spot where the drill bit will enter the workpiece.
If this is not the desired location, do not begin drilling until
the workpiece has been moved to the proper position as
indicated by the "X" on the workpiece.
LIMITING THE DRILLING DEPTH
See Figure 21.
To adjust the drilling depth when you need to drill a
number of holes to exactly the same depth:
[] Loosen the lock knob.
[] Rotate depth gauge to the desired setting.
[] Retighten the lock knob securely.
SETTING THE DRILLING DEPTH USING THE
DIGITAL DEPTH DISPLAY
See Figure 22.
Place the switch in the OFF ( O ) position.
I] Using a C-clamp or similar clamping device, secure the
workpiece to the work table. To protect the surface of
the workpiece, use a piece of scrap between the clamp
and the workpiece.
I] Select the proper drill bit based on the hole size
desired. For large holes, drill a pilot hole first, using a
smaller diameter bit. Insert and tighten the drill bit in
the chuck.
I] Set table assembly to desired height.
I] Turn on the digital depth display by pressing the
ON/OFF button.
I] Press the in./mm button until the desired unit of mea-
surement is set.
WOBKLIGHT
C-CLAMP
DEPTH__-(_
GAUGE
2O
FEEDSHAFT
Fig. 20
LOCK
KNOB
Fig. 21