Accupro 10405 Jobber Drill Bit Letter Q Solid Carbide

Product Description

The ACCUPRO 10405 is a jobber-length drill bit sized to Letter Q (0.3320 inches) and manufactured from solid carbide. It is designed for high-precision drilling in ferrous and non-ferrous metals, composites, and hard materials where standard high-speed steel bits fall short. The 150-degree drill point angle promotes clean entry with reduced walking, while the three-flute spiral design improves chip evacuation and hole finish. With a 4-inch overall length and a 2-inch flute length, this bit fits the standard jobber range and is suited for use in CNC machining centers, drill presses, and hand-held power tools used in industrial and shop environments. Machinists, tool-and-die workers, and fabricators are the primary installers.

This drill bit is used in production and maintenance machining applications where tight tolerances and consistent hole geometry are required. It is appropriate for drilling through hardened materials, alloy steels, stainless, and high-temperature alloys. The straight cylindrical shank accepts standard drill chucks without modification. The bright uncoated finish makes it suitable for general-purpose applications where a specialty coating is not required. It covers the decimal inch range of 0.3000 to 0.3500 inches and is built to ANSI specification standards.

Key Features

• Letter Q size — 0.3320 inches decimal equivalent
• Solid carbide construction for hardness and wear resistance in demanding materials
• 150-degree drill point angle reduces walking and promotes accurate entry
• Three-flute spiral design improves chip evacuation and surface finish
• Bright uncoated finish for general-purpose compatibility
• ANSI specification designation ensures dimensional conformance

Compatibility

Designed as a standard jobber-length drill bit with a straight cylindrical shank compatible with conventional drill chucks across CNC machines, drill presses, and handheld drilling tools accepting bits in the 0.3000 to 0.3500 inch range.

Installation Notes

Installation is performed by machinists and fabricators using standard drill chuck tooling. Secure the shank fully in the chuck and verify runout before drilling. Confirm spindle speed and feed rate are appropriate for the workpiece material and bit diameter before engaging the cut. Solid carbide bits are brittle and should not be used in setups with excessive vibration or side loading.