Import BDNA--22441-1 5/16 Inch Hss Jobber Drill Bit

Product Description

The IMPORT BDNA--22441-1 is a high speed steel jobber-length drill bit designed for general-purpose drilling in metal, wood, and plastic. It features a 5/16 inch diameter with a 118-degree split point that reduces walking on contact and improves hole accuracy without a center punch. An oxide finish provides basic corrosion resistance and reduces friction during cutting. The right-hand spiral flute design efficiently clears chips from the hole as the bit advances. At 4.5 inches overall length with a 3-3/16 inch flute length, this bit fits standard drill chucks and magnetic-base drill setups common in mechanical and trade work.

This jobber drill bit is suited for residential and light commercial trade applications where a general-purpose drilling solution is needed. It is appropriate for HVAC technicians, plumbers, and electricians drilling pilot holes, clearance holes, and access holes in sheet metal, structural members, and conduit hangers. The straight-cylindrical shank accommodates standard 3-jaw keyed and keyless chucks. Series 314 identifies this as a production-grade bit for repetitive drilling tasks on the job site or in the shop.

Key Features

• 118-degree split point reduces bit walking and improves hole entry accuracy
• High speed steel construction handles intermittent cutting in ferrous and non-ferrous materials
• Oxide coating provides corrosion resistance and reduces heat buildup during drilling
• Web-thinned, tapered web design lowers cutting resistance and extends bit life
• Right-hand regular spiral flute clears chips efficiently during through-hole drilling
• Straight-cylindrical shank fits standard 3-jaw drill chucks without adapters

Compatibility

Designed as a general-purpose replacement jobber drill bit for use in any standard drill press, hand drill, or magnetic-base drill accepting a 5/16 inch straight-cylindrical shank.

Installation Notes

Drill bits of this type are installed and replaced by any trade professional using hand-held or bench-mounted drilling equipment. Secure the shank fully in the chuck and tighten before operation. Use appropriate cutting fluid when drilling hard metals to reduce heat and extend bit life. Wear eye protection and follow applicable OSHA safety standards when operating rotary cutting tools.