Chicago-latrobe 78484 Solid Carbide Spade Drill Bit 1/8 in

Product Description

The CHICAGO-LATROBE 78484 is a solid carbide spade drill bit designed for precision drilling in demanding applications. Built from uncoated solid carbide with a bright finish, this bit delivers consistent performance in non-ferrous metals and stainless steel. It features a 118-degree point angle optimized for accurate entry and reduced walking on hard materials. The overall length is 1.5 inches with a flute length of 0.4375 inches and a shank diameter of 0.2000 inches. At a drill bit diameter of 0.125 inches, it holds a tight tolerance of plus 0.0000 to minus 0.0005 inches. Machinists, tool and die technicians, and fabricators working on close-tolerance work will find this bit a reliable shop staple.

This bit is suited for use in CNC machining centers, drill presses, and hand-held precision drilling operations targeting non-ferrous metals such as aluminum, brass, and copper, as well as stainless steel. The Series 780 designation places it within a line built for replacement and production use. Its compact 1.5-inch overall length makes it appropriate for short-reach applications and tight-clearance fixtures. Right-hand cutting direction is standard, compatible with conventional drill press and CNC spindle rotation.

Key Features

• Solid carbide construction for extended tool life in hard and abrasive materials
• 118-degree point angle for accurate self-starting entry and clean hole geometry
• Bright uncoated finish suitable for non-ferrous metals and stainless steel
• Tight diameter tolerance of plus 0.0000 to minus 0.0005 inches for close-tolerance drilling
• Right-hand cutting direction compatible with standard spindle rotation
• Compact 1.5-inch overall length for short-reach and tight-clearance setups

Compatibility

Designed as a Series 780 replacement drill bit for production and shop use in non-ferrous metal and stainless steel drilling applications on standard drill press and CNC machining equipment accepting a 0.2000-inch shank diameter.

Installation Notes

Installation and use of this bit should be performed by qualified machinists or tooling technicians familiar with proper feeds, speeds, and chip clearance for carbide tooling. Secure the shank firmly in a collet or chuck rated for the shank diameter before operation. Carbide bits are brittle and susceptible to breakage from side loading or impact — avoid lateral force during drilling. Inspect the cutting edge before each use and replace the bit if chipping or wear is observed.