Precision Twist Drill R561.13/64 R56 1/2x22 Reduced Parallel Shank Drill

Description

Precision was founded in 1952 in Crystal Lake, Illinois. Reduced shanks are smaller than the drill diameter, so they can drill holes larger than the typical chuck capacity. Dormer tools, was founded in 1913 in Sheffield, England, is known worldwide for innovative metalworking products. These drill bits have a right hand twist that brings the chips up and away from the cutting edge. The Precision Twist R56 Jobber-length, uncoated, general-purpose, round shank drill bit drills holes into a wide variety of metals and synthetic materials with performance with steel, stainless steel, cast iron, titanium, and nickel. It can drill to a depth up to four times the diameter of the drill size. Twist drill bits can be used in hand operated drills, standalone drill presses or a machine tool called a lathe, to drill a hole. The flutes of the drill bit act a passageway for chip extraction from the hole and for coolant to enter the hole. Drilling, or hole making, is the most common metalworking operation in the world. Black oxide also helps to prevent buildup and welding of material on the cutting edge when working with iron and steel. Twist drill bits are the most common type of drill bit used. Flute length is three inches, overall length is six inches, with a half inch, reduced shank. They are made to ANSI standards, which ensure that drill bits around the world, confirm to the same specifications.

Key Features

• The Precision Twist R56 Jobber-length, uncoated, general-purpose, round shank drill bit drills holes into a wide variety of metals and synthetic materials with performance with steel, stainless steel, cast iron, titanium, and nickel.
• They are made to ANSI standards, which ensure that drill bits around the world, confirm to the same specifications.
• Black oxide also helps to prevent buildup and welding of material on the cutting edge when working with iron and steel.
• These are sometimes called Silver & Deming drills; they used to be made by Silver & Deming in the late 1800s, but nowadays, its come to mean any reduced shank twist drill bit.
• Together, the Precision and Dormer brands represent a new, streamlined organization that provides a strong North American tool brand for high productivity Carbide and HSS drill and tap products.
• It can drill to a depth up to four times the diameter of the drill size.