Eagle Cutting Tool 1090-059-I Hss Drill Bit 59/64 in

Product Description

The EAGLE CUTTING TOOL 1090-059-I is a 59/64 inch high speed steel (HSS) screw machine (stub length) drill bit with a 1/2 inch reduced shank. Screw machine length drills are shorter than jobber-length bits, which gives them greater rigidity and reduces deflection when drilling in tight spaces or on drill presses and CNC equipment. The 1/2 inch shank allows the bit to seat in standard 1/2 inch drill chucks regardless of the cutting diameter. This import-grade bit suits metalworking shops, maintenance facilities, and trade professionals who need a reliable large-diameter HSS drill for steel, cast iron, aluminum, and similar materials.

This drill bit is suited for use in machine shops, fabrication facilities, and industrial maintenance applications where a large-diameter stub-length drill is required. The screw machine profile is commonly used in drill presses, mills, and CNC lathes where a shorter flute length improves stability during heavy-feed drilling operations. The 1/2 inch shank fits standard keyed and keyless chucks on bench-top and floor-standing drill presses as well as hand-held power drills with 1/2 inch capacity.

Key Features

• 59/64 inch cutting diameter for large-bore applications
• High speed steel construction resists heat buildup during drilling
• Stub/screw machine length provides increased rigidity and reduced deflection
• 1/2 inch reduced shank fits standard 1/2 inch drill chucks
• Import grade suited for general-purpose industrial and maintenance drilling

Compatibility

Designed as a general-purpose replacement or supplemental drill bit for use in any 1/2 inch capacity drill chuck; compatible with drill presses, milling machines, CNC lathes, and heavy-duty hand-held power drills that accept 1/2 inch shanks.

Installation Notes

Secure the 1/2 inch shank firmly in the chuck and verify runout before beginning a drilling operation. Use appropriate cutting fluid or coolant when drilling ferrous metals to extend tool life and maintain cutting edge integrity. Always wear appropriate eye and hand protection and ensure the workpiece is properly clamped before drilling. Refer to the machine manufacturer guidelines for recommended feed rates and spindle speeds for the material being drilled.

Technical Specifications

• Cutting Diameter: 59/64 inch
• Shank Diameter: 1/2 inch
• Drill Type: Screw Machine (Stub Length)
• Material: High Speed Steel (HSS)
• Weight: 0.69 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: 1090-059-I