Value Collection 01359090 Screw Machine Drill Bit Letter I

Product Description

The VALUE COLLECTION 01359090 is a screw machine length drill bit designed for high-speed, close-tolerance drilling in metal fabrication, machining, and general industrial applications. Built from high-speed steel with an oxide coating, this bit measures 0.272 inches (Letter I) in diameter and features a 118-degree standard point angle for reliable penetration on common metals. The shortened overall length of 2-11/16 inches makes it well-suited for drill press work and CNC setups where rigidity and reduced runout are priorities. A licensed machinist or tool-and-die professional is the typical end user.

This bit fits standard chuck-equipped equipment including drill presses, turret lathes, and CNC machining centers. The straight cylindrical shank accepts most three-jaw and keyless chucks without adapters. Its general-purpose grade and 0.272-inch diameter place it within the 0.25 to 0.30 inch range commonly required for through-hole and clearance-hole drilling in steel, aluminum, brass, and similar materials. The right-hand cutting direction is compatible with conventional spindle rotation on standard machine tools.

Key Features

• Letter I size at 0.272 inches for precise decimal-controlled drilling
• High-speed steel construction handles common metals at moderate cutting speeds
• Oxide coating provides corrosion resistance and mild lubricity
• 118-degree standard point angle for general-purpose metal drilling
• Web-thinned construction reduces thrust required at entry
• Screw machine length overall at 2-11/16 inches for improved rigidity over jobber-length bits

Compatibility

Designed as a general-purpose replacement or stock bit for any machine tool equipped with a chuck accepting straight cylindrical shanks in the 0.25 to 0.30 inch diameter range.

Installation Notes

Install and remove drill bits only while the spindle is fully stopped and the machine is de-energized or the chuck is confirmed stationary. Secure the straight shank fully into the chuck and tighten all jaws evenly before initiating a cut. Always wear appropriate eye protection and secure the workpiece before drilling. Follow applicable shop safety codes and equipment manufacturer guidelines for spindle speed selection based on material type and bit diameter.