Chicago-latrobe 47338 Jobber Drill Bit 9.6 Mm Hss

Product Description

The CHICAGO-LATROBE 47338 is a jobber-length twist drill bit designed for general-purpose metal drilling in production and maintenance environments. Built from high speed steel with an oxide coating, it measures 9.6 mm (0.378 inches) in diameter and runs a 118-degree standard point angle suited for drilling into cast iron and steel. The overall length is 133 mm (5.24 inches), with a 2-flute spiral configuration and a straight-cylindrical shank. Web-thinned geometry at the tip reduces thrust and improves penetration on harder ferrous workpieces. Licensed trades and machining professionals rely on this Series 150 bit for reliable, repeatable hole quality without specialty tooling.

This drill bit is built for drilling cast iron and steel in general-purpose applications. It fits standard drill chucks accepting a 0.378-inch straight shank and is appropriate for use in hand drills, drill presses, and CNC machines running at appropriate surface speeds for high speed steel tooling. The flute length of 87 mm (3.43 inches) provides adequate chip clearance for through-hole drilling in typical stock thicknesses encountered in fabrication, maintenance, and mechanical service work.

Key Features

• 9.6 mm (0.378 inches) diameter with tight diameter tolerance of -0.001 to 0.000 inches for consistent hole sizing
• 118-degree standard point angle with web-thinned, tapered web configuration for reduced entry thrust
• High speed steel construction with oxide finish for heat resistance and corrosion protection during ferrous drilling
• 2-flute regular spiral design promotes efficient chip evacuation in cast iron and steel
• Straight-cylindrical shank compatible with standard 3-jaw drill chucks
• Meets DIN 338 specification for jobber-length drill bits

Compatibility

Designed as a general-purpose jobber-length drill bit for use in cast iron and steel applications; compatible with any standard drill chuck accepting a 0.378-inch straight-cylindrical shank.

Installation Notes

This bit is installed by a machinist, maintenance technician, or skilled trade professional using a standard drill chuck. Secure the shank fully in the chuck before applying power and confirm the workpiece is clamped or fixtured to prevent movement. Select spindle speed appropriate for high speed steel tooling and the material being drilled. Do not exceed the recommended surface footage for HSS; overheating will shorten tool life and may harden the workpiece surface.