Chicago-latrobe 44086 No. 16 Jobber Drill Bit Hss

Product Description

The CHICAGO-LATROBE 44086 is a jobber length drill bit in wire gauge size No. 16, with a decimal diameter of 0.1770 inches. Manufactured from high speed steel with an oxide coating, this bit is built for general-purpose drilling in production and maintenance environments. It features a 118-degree standard point angle, a two-flute regular spiral design, and a web-thinned tapered web for improved chip evacuation and reduced thrust. Overall length is 3-3/8 inches with a flute length of 2-3/16 inches. It is sized to the DIN 338 standard and is sold individually.

This bit is suited for drilling into cast iron and steel in light industrial, mechanical, and fabrication applications. The straight-cylindrical shank seats in standard three-jaw chucks on drill presses, hand drills, and CNC machining centers. The oxide finish provides a degree of lubricity and surface protection during dry or minimally lubricated cuts. With its general-purpose grade and regular spiral, it covers a wide range of common hole-making tasks on the shop floor or in the field.

Key Features

• Wire gauge No. 16 diameter: 0.1770 inches, conforming to DIN 338
• High speed steel construction with oxide coating for added surface protection
• 118-degree standard point angle with web-thinned tapered web for reduced thrust
• Two-flute regular spiral design for efficient chip removal
• Straight-cylindrical shank compatible with standard drill chucks
• Right-hand cut, no coolant-through requirement — suitable for dry or light-lube operations

Compatibility

Designed as a general-purpose jobber length drill bit for use in standard three-jaw chucks across drill presses, hand drills, and compatible CNC holders accepting a 0.1770-inch straight-cylindrical shank. Primary workpiece materials listed by the manufacturer are cast iron and steel.

Installation Notes

Secure the shank fully in the chuck and verify runout before drilling. Clamp the workpiece firmly to prevent walking at drill entry. For best results in steel, apply a light cutting fluid to extend edge life and reduce heat buildup. When replacing or handling drill bits, de-energize the machine and follow standard lockout procedures before changing tooling.