Chicago-latrobe 50347 Taper Length Drill Bit 0.0430 in Hss

Product Description

The CHICAGO-LATROBE 50347 is a taper length drill bit designed for precision drilling in metal fabrication and general machining applications. Built from high speed steel with a coated finish, this bit features a 118-degree standard point angle and a web-thinned, tapered web configuration for improved penetration and reduced thrust. The straight shank measures 0.0430 inches in diameter, matching the wire size 57 designation. With a right-hand spiral flute and regular spiral type, it delivers consistent chip evacuation during cutting. Licensed trades and machining professionals rely on this bit for accurate, repeatable hole sizing in tight-tolerance work.

The 50347 is suited for drilling alloy steel, carbon steel, and cast iron in both shop and field environments. The taper length body provides additional reach compared to a jobber-length bit, making it useful in applications where extra flute length aids chip clearing or where workpiece geometry limits access. With a flute length of 1.125 inches and an overall length of 2.25 inches, it fits standard drill chucks and CNC collet setups that accept a 0.0430-inch straight shank. General-purpose grade construction makes it appropriate for production runs and maintenance drilling alike.

Key Features

• Wire size 57 designation with 0.0430-inch diameter for tight tolerance hole work
• High speed steel construction with coated finish for extended wear resistance
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Right-hand spiral flute with regular spiral for consistent chip evacuation
• Taper length body at 2.25 inches overall provides extra reach over jobber-length bits
• No coolant-through requirement; compatible with standard dry or light-fluid drilling setups

Compatibility

Rated for use in alloy steel, carbon steel, and cast iron. Fits any standard drill chuck or collet accepting a 0.0430-inch straight shank. Part of the CHICAGO-LATROBE Series 120 taper length drill line.

Installation Notes

Machinists and drill press operators should secure the shank fully in the chuck or collet before operation and verify runout before drilling. Power down and de-energize the machine before changing bits. Follow applicable shop safety standards and wear appropriate eye protection. Avoid side-loading this small-diameter bit, as lateral force can cause breakage.