Precision Twist Drill 040808 Hss Stub Drill 1/8 in

Product Description

The PRECISION TWIST DRILL 040808 is a high-speed steel (HSS) stub-length drill bit designed for applications where rigidity and accuracy are critical. With a 1/8 inch tip diameter and a 2.5 inch depth of cut, this bit is built for heavy-duty drilling in tight spaces or on short-reach setups. The stub length design reduces deflection and chatter compared to standard jobber-length bits, making it a reliable choice for machinists, maintenance technicians, and fabricators who need repeatable hole placement and clean entry in metal, composite, or dense material stock.

Stub drills are a common choice in production machining, maintenance repair, and fabrication environments where standard-length bits flex too much or simply do not fit the fixture. The 040808 is suited for drilling in steel, cast iron, aluminum, and similar materials where a short, stiff bit improves hole quality. Its compact overall length makes it compatible with drill presses, CNC setups, and hand-held power drills in confined work areas.

Key Features

• HSS construction provides hardness and heat resistance for drilling metal and hard materials
• Stub length body reduces bit deflection for greater drilling accuracy
• 1/8 inch diameter tip suits small-hole drilling tasks in metal, composite, and similar stock
• 2.5 inch depth of cut handles most stub-drill applications without excessive bit exposure
• Short flute length increases rigidity over standard jobber-length equivalents

Compatibility

Designed as an OEM-style replacement or direct-use stub drill for standard 1/8 inch chuck or collet setups on drill presses, CNC machines, and hand-held power drills.

Installation Notes

Stub drill bits should be installed by machinists or qualified technicians familiar with proper chuck seating and runout inspection. Secure the bit fully in the chuck or collet before operation and confirm there is no visible wobble at speed. Always wear appropriate eye protection and secure the workpiece before drilling. Follow applicable OSHA and shop-safety guidelines for rotating tooling.

Technical Specifications

• Diameter: 1/8 inch
• Depth of Cut: 2.5 inches
• Overall Length: 1-7/8 inches
• Material: High-Speed Steel (HSS)
• Drill Type: Stub Length
• Weight: 0.05 pounds
• Unit of Measure: Pack
• Minimum Order Quantity: 1
• UPC: 086071408082

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 040808