Upright drill presses are availible in ______ and ______ models?
What is Bench top and floor models
100
What are the two main materials used to make holemaking cutting tools?
What is high speed steel and carbide
100
List five drill press safety guidelines?
What is to be determined.
100
What is spotting and why is it performed?
What is After the workpiece is positioned and securely clamped, a center drill or spot drill is usually used to create a more positive starting point for a twist drill.
100
What benefit does tapping on the drill press offer over hand tapping?
What is the drill press can also be used to properly align taps, eliminating the need for using a square as when hand tapping.
200
List two general types of upright drill press heads
What is belt driven or gear driven heads
200
What two types of shanks are commonly found on twist drills?
What is Strait shank and tapered shank
200
Briefly define the term cutting speed
What is cutting speed is the distance that a point on the circumference of a rotation cutting tool travels in 1 minute
200
What is pecking or peck drilling?
What is Retract the quill frequently to remove chips from the point of the drill.
200
How many turns must a .250-20 tap be turned into a hole to produce 3/8 inch of threads in a hole?
What is 7.5 turns
300
Explain how the size of an upright drill press is determined?
What is Identified by the largest-diameter workpiece that can be drill on center.
300
Name three functions of the flutes on a twist drill?
What is create the cuttings lips. provide a pathway for chips to flow and for cutting fluid to flow into the hole to cool the drill.
300
What unit of measure is used to define cutting speeds?
What is it is stated in surface feet per minute.
300
What drill press component can be used to control counterbore depth?
What is depth stop.
300
What must be used to secure a workpiece to an angle plate?
What is c clamps or tool makers clamp
400
Briefly describe the term sensitive drill press
What is a drill press without a power feed mechanism is sometimes called a sensitive drill press
400
Name two types of flute styles for machine reamers?
What is Strait flute and spiral flute
400
What is feed, and how is feed stated for drill press operations?
What is feed refers to the movement, or advancement, of the cutting tool into the workpiece. and reed rate is the term used in the shop to describe this.
400
Calculate feed depth for a 90 degree countersink used to machine a .40 diameter chamfer on an existing .250 hole.
What is .400-.250=.150 then .150/2 = .075 which is the depth.
400
What devices are used to elevate a workpiece to prevent drilling into the vise or bed?
What is Parallels or blocks.
500
Briefly describe a gang drill press and its benifit
What is a gang drill press contains multiple drilling heads attached to a single base and worktable.
500
How might an interruption such as a keyway influence the selection of a reamer?
What is a spiral cutting edge can span the interruption and minimize tool vibration.
500
Briefly describe two methods for location hole position on the drill press?
What is center finder or wiggler.
500
Calculate feed depth for a 82 degree countersink used to machine a .500 diameter hole on an existing 9/32 hole?
What is .500-.2813=.2187/2=.10935 then multiply by 1.15=.1258 witch is the depth
500
Which would be the best workholding device for holding a .750x12x14 inch plate for drilling a series of holes through a large surface of the plate?