Import BDNA--22438-1 Jobber Drill Bit 17/64 in Hss

Product Description

The IMPORT BDNA--22438-1 is a jobber-length drill bit designed for general-purpose drilling in metal, wood, and plastic. Built from high speed steel with a gold oxide coating, this bit handles the heat and friction of production and maintenance drilling without sacrificing edge life. It measures 17/64 inch (0.2656 inch decimal) in diameter with a 118-degree split point for accurate self-starting and reduced walking on entry. The overall length is 4-1/8 inches with a 2-7/8-inch flute length. Right-hand cut with a regular spiral flute and a straight-cylindrical shank, this bit fits standard three-jaw chucks and drill presses. Installation and use are appropriate for machinists, maintenance technicians, plumbers, and electricians doing general metalwork or conduit drilling.

This drill bit is sized in the 0.2500 to 0.3000 inch decimal range, making it a common choice for through-holes, pilot holes, and clearance holes in light to medium-duty applications. It suits both handheld drills and bench-mounted drill presses in residential, commercial, and light industrial settings. The straight-cylindrical shank ensures compatibility with standard chuck configurations. The web-thinned, tapered web design reduces feed pressure and improves chip evacuation in deeper cuts.

Key Features

• 17/64 inch diameter (0.2656 inch decimal) for precise sizing in the 0.2500-0.3000 inch range
• 118-degree split point reduces walking and improves bite on entry
• Gold oxide coating improves lubricity and extends cutting edge life compared to uncoated HSS
• Web-thinned, tapered web configuration lowers feed pressure and clears chips more effectively
• Right-hand spiral flute evacuates material efficiently during through-hole drilling
• Straight-cylindrical shank fits standard three-jaw chucks on handheld drills and drill presses

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard three-jaw drill chuck accepting a straight-cylindrical shank in the 17/64 inch diameter range.

Installation Notes

Secure the shank fully in the chuck before operation and confirm the bit is centered and running true before applying feed pressure. Use cutting fluid or lubricant when drilling steel to extend bit life and reduce heat buildup. Match drill speed to material type — slower RPM for harder metals, higher RPM for softer materials and plastics. Inspect the cutting edges for chipping or dullness before each use and replace the bit if the point is visibly worn.