Basic Drilling
Operations
The Model G9969 is designed for drilling holes in wood, plastics or metal. The basic operation of a drill press is lining up your drill bit with the intended hole location, turning the drill press ON, and using the downfeed handles to move the spinning drill bit into the workpiece at a steady and controlled feed rate.
For safe operation and optimum results, it is very important to follow these guidelines when drilling:
SECURING WORKPIECE TO BASE: Secure the workpiece to the base or in a vise that is secured to the base before drilling.
CLEARING CHIPS: Raise the drill bit often to clear chips and cool the drill bit. This will ease the work of the drill press motor and extend the life of your drill bits.
PROTECTING BASE: Protect the base by plac- ing the workpiece on scrap wood. Also, use the depth stop so that the drill bit goes no deeper than necessary.
USING CORRECT SPEEDS: Use the correct speed for the diameter of the drill bit being used and the type of material being drilled. Refer to the Drill Bit Speed Chart on Page 23 to help you choose the correct speed for your application.
LARGE DIAMETER BITS: Large diameter drill bits require slower spindle speeds.
SMALL DIAMETER BITS: Smaller diameter drill bits require faster spindle speeds.
HARD MATERIAL: The harder the material, (steel vs. wood) the slower the spindle speed.
SOFT MATERIAL: The softer the material, the faster the spindle may turn. (Plastics can melt at too high of a spindle speed!)
LUBRICANT: Use some form of lubricant on all materials except wood and cast iron. Refer to Lubrication Suggestions on Page 23 to find the correct lubrication for your application.
DRILLING ACCURACY: To prevent drill bit wan- dering and ensure accurate placement of holes, mark the hole location with a center punch before drilling. Also consider using a
PLUG/ROSETTE CUTTERS: Plug cutters and rosette cutters are for wood only. However, car-
SPADE BITS AND PLASTIC: When drilling plas- tic with a spade bit, use a spade bit with spurs.
HOLE SAWS: When using hole saws, apply firm and even pressure, so the saw teeth contact the surface all at the same
Larger bits turning at slower speeds tend to grab the workpiece aggressively. When using large bits, always clamp the work- piece to the base to prevent injuries. Failure to heed this caution can result in the oper- ator's hand being pulled into the bit or the workpiece being thrown with great force, causing serious personal injury!
G9969 Radial Drill Press |