Accupro A-6120189R Micro Drill Bit 1.89mm Solid Carbide

Product Description

The ACCUPRO A-6120189R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. It measures 1.89 mm (0.0744 inches) in diameter with a 120-degree drill point angle and a bright, uncoated finish. The overall length is 38.00 mm with a flute length of 8.40 mm, making it part of the Miniature series suited to small-diameter, high-accuracy work. Machinists and tooling technicians install this bit in CNC machining centers, drill presses, and precision hand-held spindles where dimensional accuracy and bit rigidity are critical. The solid carbide construction delivers the hardness needed to hold tolerances through repeated passes in metals, composites, and plastics.

This micro drill bit fits residential and commercial machine shop environments, precision electronics manufacturing, and fabrication settings where small-diameter holes are required. Its straight cylindrical shank and standard point type make it compatible with conventional collet chucks and drill chucks sized for 2.00 mm shank diameters. The right-hand cutting direction suits standard forward-rotation spindles. It is a single-piece item sold individually, with a minimum order quantity of 10 units, making it appropriate for shops that stock consumable tooling in volume.

Key Features

• Solid carbide construction provides high hardness and wear resistance for small-diameter drilling
• 1.89 mm (0.0744 inches) drill diameter with 120-degree point angle for controlled entry and reduced walking
• Bright, uncoated finish suitable for general-purpose machining without coating interference
• Spiral flute with regular spiral type promotes chip evacuation in short-flute micro drilling
• Straight cylindrical shank (2.00 mm) fits standard collet and drill chuck systems
• Right-hand cutting direction compatible with conventional forward-rotation machine spindles

Compatibility

Designed for use in CNC machining centers, drill presses, and precision spindle systems that accept a 2.00 mm straight cylindrical shank, consistent with standard Miniature series micro drill bit fitment.

Installation Notes

Installation and use of this drill bit should be performed by a qualified machinist or tooling technician. Power down or de-energize the machine spindle completely before inserting or removing the bit from the chuck or collet. Ensure the collet or chuck is correctly sized for the 2.00 mm shank diameter to prevent runout and premature bit failure. At micro diameters, feed rate and spindle speed selection are critical — follow the machine manufacturer and tooling manufacturer recommendations for carbide micro drills to avoid breakage.