Filing
This process is not just about removing excess metal but about achieving the correct dimensions and tolerances on a workpiece.
What is filing?
This hard steel cutting tool is often paired with a ball peen hammer for cutting and chipping metals softer than itself.
What is a chisel?
This chisel is ideal for cutting in corners, making small oil grooves, and fixing incorrect drill starts.
What is a diamond-point chisel?
These tools are used for drilling holes and are commonly made from high carbon steel or alloy steel.
What are drill bits?
This drill type is used for counter-boring holes to provide seating for a bolt head or nut.
What is an arboring or peg drill?
This filing method is used to smooth and square large surfaces by rubbing the file back and forth across the entire surface.
What is draw filing?
This is the proper angle range for standard cutting operations like cutting wire or strap iron.
What is 60° to 70°?
This chisel, also called a round chisel, is used for cutting half-round bottomed grooves.
What is a half-round chisel?
Alloy steel drills are often called this because they can operate at much higher cutting rates.
What are high-speed drills?
This is the most common type of drill bit, featuring flutes for swarf clearance and coolant access.
What is a twist drill?
This type of filing is best for edges of metal parts that must fit tightly together and involves clamping the metal in a vise.
What is cross filing?
The cutting edge of a chisel is slightly bulged to protect these weaker parts from damage.
What are the corners?
To maintain a chisel’s cutting edge, it should be sharpened on this tool and finished on an oilstone.
What is a grindstone?
High-speed drills contain this percentage of tungsten, allowing them to run hotter without losing temper.
What is 14%?
The cutting angle of a standard twist drill is normally this many degrees from the centerline.
What is 59°?
This substance can be rubbed on the teeth of a file during the final finish to prevent clogging and produce a finer finish.
What is chalk?
This type of chisel is used for general chipping work, such as parting metal sheets or cutting flat surfaces before filing.
What is a flat chisel?
The cutting angle for aluminum alloy is this many degrees.
What is 30°?
This simple drill type tends to drill inaccurate holes, clogs easily, and has a point angle of 45°.
What is a flat drill?
The angle between the web and the cutting edge of a twist drill is this many degrees.
What is 130°?
This tool or method is used to remove metal particles lodged between the teeth of a file when tapping doesn’t work.
What is a file card, wire brush, or sharp point?
Also called a cape chisel, this tool is used for cutting narrow, flat-bottomed grooves like keyways in shafts.
What is a cross-cut chisel?
The cutting angle for hard steel is in this range.
What is 70° to 75°?
This drill type is used to finish the bottom of a blind hole.
What is a bottoming drill?
This part of a twist drill provides clearance to reduce friction during drilling.
What is the land?