SIZE | 5/16″ |
INCLUDED ANGLE | 82° |
SHANK DIAMETER | 1/4″ |
TOOL MATERIAL | High Speed Steel |
FINISH COATING | Uncoated |
HARDNESS | 58 to 60 RC |
NO. OF FLUTES | 1 |
OVERALL LENGTH | 2″ |
SHANK STYLE | Straight Shank |
TYPE | Single Flute High Speed Steel Countersinks |
5/16″ Countersink
5/16″ diameter, 1/4″ shank diameter, 2″ length
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Left Hand HSS Tool
Lathe tools—often referred to as tool bits—are the primary cutting tools used for turning and facing operations on a lathe. The most common type is made from high-speed steel (HSS), which is suitable for machining a wide range of materials, including wood, plastic, aluminum, brass, and steel. HSS tool blanks are relatively inexpensive and can maintain their hardness at temperatures up to 1000°F (588°C), making proper control of depth of cut, cutting speed, and feed rate essential.
A major advantage of HSS tools is how easily they can be sharpened. They can be shaped and resharpened using a standard aluminum oxide grinding wheel and, once sharpened, will hold their edge for a long time.
NOTE: A lathe tool is named for the direction the chip exits the tool. A right-hand tool has its cutting edge on the left, causing the chip to peel off to the right.