BIT DRILL 5/16"X12" HSS

PRODUCT DESCRIPTION:

The Irwin 62120 is an aircraft extension / extra-length drill bit, designed to reach deeper or hard-to-reach spots. It has a 5/16-inch diameter, a 12-inch overall length, and is made of high-speed steel (HSS) with a black oxide finish. It features a 135° split point to reduce walking and help with accurate starts.

INSIGHTS:

Use lower speeds and moderate feed pressure to reduce heat and deflection.

Use cutting fluid / lubricant especially when drilling metals.

Use peck drilling (periodically retract to clear chips) to prevent clogging.

Whenever possible, use a drill press or guide to improve alignment.

When resharpening, maintain the 135° split point geometry for best performance.

Store it straight and protected to avoid bending or damage.

TECHNICAL SPECIFICATIONS:

Brand: IRWIN

Item Model Number: 62120

Product Type: Aircraft Drill Bit

Material: High Speed Steel

Finish: Black Oxide

Shank Type: Straight

Diameter: 5/16"

Overall Length: 12"

Flute Length: 3-3/16"

Grade: M2

Point Angle: 135°

Flute Type: Spiral

Cutting Direction: Clockwise, Right Hand

Surface Recommendation: Metal, Plastic, Wood

Shipping Weight: 1b