Eagle Cutting Tool S400-029-I Hss Stub Drill 29/64 in

Product Description

The EAGLE CUTTING TOOL S400-029-I is a 29/64-inch high-speed steel stub drill bit featuring a 135-degree split point geometry. Stub-length drills offer a shorter flute and overall length compared to jobber-length bits, which increases rigidity and reduces deflection during drilling operations. The 135-degree split point tip is self-centering, eliminating the need for a center punch on most materials and allowing faster penetration with reduced thrust. This bit is suited for use in hand-held drills, drill presses, and CNC machining centers where a stiff, accurate drill is required for production or maintenance work.

This stub drill is intended for metalworking applications including drilling mild steel, aluminum, cast iron, and similar materials. Its shortened body makes it well suited for tight-clearance work and situations where standard jobber-length bits chatter or deflect. Machinists, maintenance technicians, pipefitters, and fabricators working in industrial, commercial, and light manufacturing environments are the primary users of this drill format.

Key Features

• 29/64-inch diameter for accurate hole sizing
• High-speed steel (HSS) construction provides heat and wear resistance during metal drilling
• 135-degree split point tip is self-centering and reduces walking on hard or smooth surfaces
• Stub length increases rigidity and minimizes deflection compared to jobber-length alternatives
• Compatible with standard drill chucks on hand-held drills, drill presses, and machining centers

Compatibility

Designed as a stub-length replacement or supplemental bit for use with any standard drill chuck accepting a 29/64-inch shank, including portable drill drivers, bench-mount drill presses, and CNC machining spindles configured for HSS tooling.

Installation Notes

Secure the bit fully in the chuck and verify there is no runout before beginning a cut. Always wear appropriate eye protection and secure workpieces before drilling. Reduce spindle speed and apply cutting fluid when drilling harder or thicker stock to extend tool life. Inspect the cutting edges for wear or chipping before each use and replace the bit if damage is visible.

Technical Specifications

• Drill Diameter: 29/64 inch
• Point Angle: 135 degrees
• Point Type: Split point
• Drill Length Type: Stub
• Material: High-speed steel (HSS)
• Weight: 0.95 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: S400-029-I