Chicago-latrobe 48715 Screw Machine Drill Bit 0.18 in Hss

Product Description

The CHICAGO-LATROBE 48715 is a screw machine length drill bit designed for general-purpose drilling in metalworking and fabrication applications. Built from high speed steel with a bright/uncoated finish, this bit features a 0.1800-inch diameter, a 118-degree standard point angle, and a right-hand spiral flute configuration. The shorter-than-jobber screw machine length provides added rigidity, reducing deflection in drill press and CNC turret operations. Web thinning improves penetration on harder materials and reduces thrust load at the cutting edge. Licensed trades and machining professionals working with cast iron, non-ferrous metals, and steel will find this a reliable daily-use tool.

The 48715 fits general metalworking environments including machine shops, HVAC fabrication, plumbing rough-in, and light manufacturing. Its straight cylindrical shank seats securely in standard drill chucks. The 2-3/16-inch overall length and 1-1/8-inch flute length are optimized for use in screw machine and turret setups where stub-length rigidity matters. It is categorized within the Series 157 line, covering the 0.1500 to 0.2000-inch diameter range, and corresponds to wire gauge size number 15.

Key Features

• 0.1800-inch diameter with a tight tolerance of +0.0000 to -0.0007 inches for precise hole sizing
• 118-degree standard point angle with web thinning for reduced entry force
• High speed steel construction rated for cast iron, non-ferrous metals, and steel
• Screw machine length body adds rigidity and minimizes deflection versus jobber-length bits
• Straight cylindrical shank compatible with standard drill chucks and collets
• Bright/uncoated finish suitable for general-purpose applications without added coating cost

Compatibility

Designed as a general-purpose screw machine length drill bit for use with standard drill chucks and turret lathe setups where a straight cylindrical shank and 0.1800-inch diameter are specified. Suitable for drilling cast iron, non-ferrous metals, and steel workpieces.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or trade professionals familiar with drill press, lathe, or CNC turret operation. Secure the shank fully in the chuck or collet and verify runout before cutting. Wear appropriate eye protection and secure workpieces before drilling. Follow applicable shop safety standards and equipment manufacturer guidelines for speed and feed settings based on workpiece material.