Dormer A92135/64 Screw Machine Drill - 0.5469, 35/64, 64, a921

Description

The A941 series has a type W flute form, with a fast helix angle of 35 to 45 degrees, and is most suitable for drilling into steel, stainless steel, titanium, nickel, and alloyed aluminum. The Dormer A921 Spectrum stub-length drill bit is a 130-degree, PFX point, round shank drill bit made of HSS and cobalt. Made of HSS with cobalt which is many times harder and stiffer than HSS, will hold an edge longer, and will deflect less than HSS. It has an Aluminum chromium nitride (AlCrN) coating (also called Smooth-Flow coating), which helps increase chip removal and helps in wear resistance, and combines hardness in high heat with high oxidation resistance. Twist drill bits are commonly us. The shank diameter is the same as the drill size. They are made to ANSI and DIN industry standards, which help ensure that drill bits around the world conform to the same specifications. This coating is most suitable for use on ductile cast iron and carbon steel. Twist drill bits are the most common type of drill bit used. Drilling, or hole making, is the most common metalworking operation in the world. The spiral flutes act as a passageway for chip extraction from the hole and for coolant to enter the hole. The composition of HSS and cobalt offers a combination of toughness and hardness needed for deep hole drilling. These qualities allow it to run at higher speeds and feeds. The stub length offers more stiffness than a jobber-length drill bit. These are also more resistant to heat than HSS.

Key Features

• This design allows for single-pass drilling, which helps eliminate the need for pecking in up to three times the drill diameter deep holes, thus offering improved efficiency and increased productivity.
• This coating is most suitable for use on ductile cast iron and carbon steel.
• The Dormer A921 Spectrum stub-length drill bit is a 130-degree, PFX point, round shank drill bit made of HSS and cobalt.
• It has an Aluminum chromium nitride (AlCrN) coating (also called Smooth-Flow coating), which helps increase chip removal and helps in wear resistance, and combines hardness in high heat with high oxidation resistance.
• The parabolic design, combined with a parallel thinned web, allows for smooth and efficient chip evacuation.
• The A941 series has a type W flute form, with a fast helix angle of 35 to 45 degrees, and is most suitable for drilling into steel, stainless steel, titanium, nickel, and alloyed aluminum.