Chicago-latrobe 47713 Cobalt Jobber Drill Bit 13/64 in

Product Description

The CHICAGO-LATROBE 47713 is a cobalt jobber-length drill bit designed for high-performance drilling in hard and abrasive materials. Built to Series 550ASP specifications and conforming to NAS 907 Type B standards, this bit features a 135-degree split point that reduces walking and enables faster penetration without a center punch. The straight-cylindrical shank measures 13/64 inches in diameter, and the overall length is 3.625 inches. With a gold finish, spiral flute geometry, and web-thinned, tapered web construction, this bit is suited for demanding production and maintenance drilling applications where standard HSS tooling falls short.

This drill bit is rated for primary use on titanium and other tough, heat-resistant alloys commonly encountered in aerospace, industrial maintenance, and heavy fabrication environments. The right-hand cut and regular spiral flute promote efficient chip evacuation during deep-hole passes. The 2.4375-inch flute length provides adequate chip clearance for jobber-depth applications. Licensed tradespeople and toolroom machinists working with titanium, stainless, and high-nickel alloys will find this bit appropriate for both drill press and handheld power tool use where a rigid setup is maintained.

Key Features

• Cobalt construction for heat resistance and durability in hard-material drilling
• 135-degree split point reduces thrust and eliminates walking on hard surfaces
• Web-thinned, tapered web improves cutting efficiency and chip flow
• Gold finish provides lubricity and surface protection during high-speed operation
• Conforms to NAS 907 Type B specification for aerospace and industrial standards
• Right-hand spiral flute with 2-flute configuration for reliable chip evacuation

Compatibility

Designed as a heavy-duty OEM-style jobber drill bit for use in standard straight-shank drill chucks. Primary workpiece material rating is titanium per Series 550ASP specifications.

Installation Notes

Install into a keyed or keyless drill chuck rated for the 13/64-inch straight-cylindrical shank before use. Secure the workpiece firmly to prevent movement during drilling, particularly when working with titanium or hard alloys. Use appropriate cutting fluid or coolant to manage heat buildup; this bit does not support coolant-through delivery. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.