Eagle Cutting Tool 1090-104-I Hss Drill Bit 1-1/16 in

Product Description

The EAGLE CUTTING TOOL 1090-104-I is a high speed steel (HSS) slow spiral drill bit designed for heavy-duty drilling applications in metalworking and fabrication environments. Built with a 1-1/16 inch cutting diameter and a 1/2 inch reduced shank, this bit is sized for use in standard 1/2 inch drill chucks found on drill presses and heavy-duty hand drills. The slow spiral (low helix) geometry is well suited for drilling tough, hard materials where chip control and hole quality are priorities. Machinists, tool and die technicians, and industrial maintenance mechanics are the primary users of this style of bit.

This drill bit is applicable to production and maintenance drilling in ferrous metals, hard plastics, and other materials that benefit from a slow helix angle. The 1/2 inch shank allows the bit to be chucked in standard drill press setups without requiring a larger spindle taper adapter. It is commonly used in job shop environments, maintenance facilities, and fabrication shops where large-diameter HSS drilling is a routine task.

Key Features

• 1-1/16 inch cutting diameter for large-diameter hole drilling without specialty tooling
• High speed steel construction provides heat resistance and durability across a range of ferrous and non-ferrous materials
• Slow spiral (low helix) flute geometry promotes chip control and reduced chatter in hard or tough materials
• 1/2 inch reduced shank fits standard 1/2 inch drill chucks on drill presses and heavy-duty drills
• Import-grade tooling suitable for general maintenance and production drilling applications

Compatibility

Designed for use in any drill press or heavy-duty drill equipped with a 1/2 inch chuck capacity; compatible with standard 1/2 inch drill chuck tooling setups.

Installation Notes

Installation and use should be performed by a qualified machinist or trained technician familiar with rotary cutting tools. Ensure the drill press or driving tool is powered off and fully stopped before securing or removing the bit from the chuck. Use appropriate cutting fluid or coolant for the material being drilled to extend tool life and maintain hole quality. Always inspect the cutting edges for wear or damage before use and replace the bit if chipping or dullness is observed.

Technical Specifications

• Cutting Diameter: 1-1/16 inches
• Shank Diameter: 1/2 inch
• Flute Type: Slow Spiral (Low Helix)
• Material: High Speed Steel (HSS)
• Weight: 1.2 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: 1090-104-I