Drills and Drill Press Safety in the Lab

Traditional Hand Drills

Inside a Hand Drill

Corded Drills Electric Variable speed Forward & reverse ¼ “ -3/8” chuck Strong and durable

Cordless Drills Battery power 3/8” chuck Forward & reverse Quick release chuck Torque collar

Drill Press Table or bench top Electric ½ chuck Variable speed Depth guage/stop

Drills and Bits HS twist bit Spade bit Brad point Forstner Hole saw

Drill Press Part Identification 1 Variable speed control 2 Power Switch 3 Depth stop 4 Chuck key 5 Chuck 6 Tilt table 7 Belt/pulley cover 8 Motor 9 Head support collar 10 Column 11 Quill feed lever 12 Table locking clamp 13 Base

Drill Press Safety Do not wear loose clothing or jewelry while operating a drill press. Confine long hair with a tie or hair net. Wear industrial quality eye protection while drilling. Maintain a 4” safety zone. Keep work space around the drill press clean. Turn off power before making adjustments. Drill only with sharp drill bits with shanks that are matched to the type of chuck being used.

Drill Press Safety Clear the drill press table of all tools, metal, rags, etc. before drilling. Secure small work in a drill press vise or with a clamp before drilling. Keep all guards in place. Never hold small pieces by hand while drilling. Never attempt to stop a revolving piece of work in the drill press by hand. Secure bit by tightening the drill chuck. Remove the chuck key before the drill press is turned on. Never allow any part of your body to touch the drill bit or any revolving part of the drill press while it is in motion.

Drill Press Basic Operating Procedures Adjust drill speed and feed to the type and size of hole being drilled. Check drill specifications for recommended drill speeds and feed. Position long stock so it is to the left of the drill press operator while being drilled. Select proper sized bit by using drill gauge. Tighten the drill bit securely in chuck. Mark all metal to be drilled with a center punch.

Drill Press Basic Operating Procedures Support the end of long stock with a stand. Clamp stock to be drilled in vise. Place a block of wood under the metal being drilled to prevent the bit from cutting into the vise after coming through the work. Make certain the chuck key had been removed from the chuck before starting the drill press. Make sure that guard(s) is/are in place and the table locking clamp is tightened securely. Use the proper cutting lubricant for the material being drilled.

Drill Press Basic Operating Procedures Set the drill speed to match the material being drilled and hole size. Note, variable speed drill presses require the machine to be running to adjust the operating speed. Standard speeds 1720-1800 rpms Apply pressure to quill feed lever, feed drill bit into stock fast enough to keep drill bit cutting at all times. Backtrack to free loose chips. Just as the bit begins to cut through stock, reduce the feed pressure so the bit will not seize stock. Seizing causes the material to be grabbed by the bit, which will cause the material to revolve around the bit or will break the bit. If seized, pin the stock to the table using the feed lever and shut off power before removing any revolving material.

Drill Press Basic Operating Procedures After the hole is drilled release the quill feed lever slowly and allow the chuck to return to the starting position. Turn off power. When work is removed from the vise be careful, the underside of the hole may have sharp ends. Remove drill bit, return it to proper storage place and clean your area. When drilling long stock; put work on the drill press table, long end to the left of the drill press operator. When drilling round stock; use a V-shaped drill block to support and hold the material.

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