Import BDNA--22452-1 Jobber Drill Bit 31/64 in Hss

Product Description

The IMPORT BDNA--22452-1 is a jobber-length drill bit designed for general-purpose drilling in metal, wood, and similar materials. It is made from high speed steel with a gold oxide coating that provides added surface hardness and reduces friction during cutting. The bit features a 118-degree split point for accurate starting without center-punching and a right-hand spiral flute for efficient chip evacuation. At 5-7/8 inches overall length with a 4-3/8 inch flute, it fits standard three-jaw drill chucks and is sized at 31/64 inch (0.4844 inch decimal). This is a production-ready, shop-standard bit suited for machinists, maintenance technicians, and trade professionals.

This drill bit is appropriate for use in handheld drills, drill presses, and benchtop machines in residential, commercial, and light industrial settings. The straight-cylindrical shank with a 3/4 inch diameter seats securely in chucks rated for that capacity. The Series 314 designation identifies it within a general-purpose jobber-length product family. It is a common choice for through-hole drilling, pilot holes, and clearance holes across a wide range of trade applications including HVAC bracket fabrication, electrical panel work, and plumbing rough-in.

Key Features

• 31/64 inch diameter (0.4844 inch decimal) for precise sizing within the 0.4000 to 0.5000 inch range
• 118-degree split point reduces walking and eliminates the need for center-punching
• Gold oxide coating reduces friction and extends cutting life compared to uncoated HSS
• Right-hand spiral flute with regular spiral type for effective chip removal
• Web-thinned, tapered web configuration reduces drilling torque and improves penetration
• Straight-cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any drill press, handheld power drill, or CNC drilling machine equipped with a chuck sized to accept a 3/4 inch straight-cylindrical shank.

Installation Notes

A licensed machinist or qualified tradesperson should secure the shank fully into the chuck and verify the bit runs true before beginning a cut. Always wear appropriate eye protection and ensure the workpiece is clamped or secured before drilling. Match drill speed (RPM) to the workpiece material and bit diameter per standard machining reference tables. Do not apply excessive side force on the bit, as jobber-length bits can deflect or break if not properly supported.