Eagle Cutting Tool 1090-061-I 61/64 Hss Drill Bit

Product Description

The EAGLE CUTTING TOOL 1090-061-I is a 61/64 inch high-speed steel (HSS) screw machine drill bit with a 1/2 inch reduced shank. Screw machine length drill bits feature a shorter flute and overall length compared to jobber-length bits, which improves rigidity and reduces deflection in production drilling and tight-clearance applications. The 1/2 inch shank allows this bit to seat securely in standard drill chucks and machine spindles that accept that shank diameter. Licensed machinists, tool and die makers, maintenance technicians, and metalworking professionals are the primary users of this bit.

This drill bit is suited for drilling in steel, cast iron, aluminum, brass, and similar ferrous and non-ferrous metals in shop and field environments. Its screw machine length profile makes it a practical choice for drill press work, CNC machine operations, turret lathes, and manual milling applications where a shorter drill with consistent hole geometry is required. It is also used in heavy-duty hand drilling where a stubby, rigid bit is preferred over a standard jobber-length drill.

Key Features

• 61/64 inch cutting diameter for close-tolerance hole sizing
• High-speed steel (HSS) construction provides hardness and heat resistance during metal drilling
• Screw machine length body increases rigidity and reduces chatter and deflection
• 1/2 inch reduced shank fits standard drill chucks and machine spindles
• Import construction suitable for general-purpose production and maintenance drilling

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with drill presses, lathes, milling machines, and hand drills equipped with a chuck accepting a 1/2 inch shank.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with metal drilling practices. Ensure the drill chuck or collet is fully tightened and the workpiece is securely clamped before operation. Use appropriate cutting fluid or coolant when drilling ferrous metals to extend bit life and improve hole finish. Inspect the cutting edges for wear or damage before each use and discontinue use if the bit shows signs of overheating or chipping.

Technical Specifications

• Cutting Diameter: 61/64 inches
• Shank Diameter: 1/2 inch
• Drill Type: Screw Machine Length
• Material: High-Speed Steel (HSS)
• Weight: 0.69 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: 1090-061-I