Chicago-latrobe 44087 No. 17 Hss Jobber Drill Bit

Product Description

The CHICAGO-LATROBE 44087 is a jobber-length twist drill bit sized to wire gauge No. 17, which equals 0.1730 inches in diameter. Manufactured from high speed steel with an oxide coating for improved lubricity and surface hardness, this bit features a 118-degree standard point angle and a two-flute spiral configuration. Overall length is 3-3/8 inches with a flute length of 2-3/16 inches. The straight-cylindrical shank and right-hand cutting direction make it compatible with standard drill chucks and drill presses. This is a Series 150 general-purpose bit built to DIN 338 standards and suited for production or maintenance drilling operations.

This bit is designed for drilling into cast iron and steel in general-purpose applications. The web-thinned, tapered-web construction reduces thrust and improves chip clearance when boring through ferrous metals. Typical install and use scenarios include fabrication shops, mechanical contractors, HVAC equipment assembly, and field service work where consistent hole sizing is critical. The 0.1730-inch diameter is commonly used for tap drilling and close-tolerance hole applications in light to medium steel stock.

Key Features

• Wire gauge No. 17 sizing at 0.1730 inches decimal equivalent
• High speed steel construction with oxide finish for heat and wear resistance
• 118-degree standard point angle for general-purpose entry on ferrous metals
• Web-thinned, tapered-web design reduces drilling thrust and improves chip evacuation
• Right-hand spiral flute with regular helix for consistent chip removal
• Conforms to DIN 338 standard for jobber-length drill bits

Compatibility

Designed for use in cast iron and steel workpieces. Fits any standard drill chuck accepting a 0.1730-inch straight-cylindrical shank. Suitable for use in hand drills, drill presses, and milling machines configured for general-purpose drilling.

Installation Notes

Secure the bit firmly in the drill chuck before operation and verify the shank is fully seated and concentric. Use appropriate cutting fluid or coolant when drilling steel to extend bit life and maintain hole tolerance. Operate at a spindle speed appropriate for the workpiece material and bit diameter per standard machining reference tables. Inspect the cutting edges for wear before each use and replace the bit if chipping or excessive wear is present.