Accupro 4500375 Drill Bit Letter Q Solid Carbide Tialn

Product Description

The ACCUPRO 4500375 is a screw machine length drill bit designed for high-performance drilling in demanding materials. Built from solid carbide and coated with TiAlN, it handles the heat and abrasion common when drilling stainless steels and other hard alloys. The bit features a 140-degree web-thinned point that reduces entry force and improves centering accuracy. At 3.9370 inches overall length with a 1.6730-inch flute length, this is a stub-style drill optimized for rigidity in short-reach applications. Coolant-through capability supports high-speed, deep-hole operations where chip evacuation and thermal management are critical. Licensed HVAC techs, machinists, and metalworking professionals specify this type of tooling for production environments.

This drill bit is rated for primary use in stainless steels, making it a practical choice for fabrication, maintenance, and repair work where corrosion-resistant alloys are common. The straight cylindrical shank fits standard drill chucks and collet systems without modification. The 3xD flute-to-diameter ratio suits screw machine setups and CNC drilling operations where compact tooling is preferred. The right-hand cutting direction is standard for conventional spindle rotation.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN coating extends tool life in high-temperature cutting environments
• 140-degree web-thinned point reduces thrust and improves hole entry accuracy
• Coolant-through design supports chip evacuation and heat control during deep drilling
• Straight cylindrical shank at 0.3438 inches diameter fits standard chucks and collets
• Regular spiral flute geometry promotes consistent chip flow in stainless and similar alloys

Compatibility

Designed as a high-performance screw machine length drill bit for use in stainless steels, within the ACCUPRO ASSC140-TA-CL series, with a decimal inch size range of 0.3000 to 0.3500 inches.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or trades professionals familiar with CNC or manual drilling equipment. Ensure the spindle and chuck are fully powered down and locked out before loading or removing tooling. Verify that coolant lines are properly connected and flowing before running coolant-through tooling at rated speeds. Follow machine manufacturer guidelines and applicable ISO specifications for tooling setup and safe operating parameters.