Accupro A-6100057R Micro Drill Bit Size 74 0.0224 in Carbide

Product Description

The ACCUPRO A-6100057R is a solid carbide micro drill bit sized at wire gauge 74, equivalent to 0.0224 inches in decimal diameter. Designed for precision drilling in miniature applications, this bit features a 120-degree drill point angle and a right-hand cutting direction. The bright, uncoated finish preserves the carbide substrate without added coating thickness, making it well suited for tight-tolerance bores. With an overall length of 25.00 mm and a straight-cylindrical shank measuring 1.00 mm in diameter, it is built for use in CNC machines, micro-machining centers, and precision benchtop drill presses where small-diameter, repeatable hole quality is required.

This micro drill bit is intended for precision machining work involving small-diameter holes in materials such as metals, printed circuit boards, and engineered plastics. The miniature series designation indicates it is sized for applications where standard drill geometry is too large or too aggressive. It is commonly used by machinists, tool and die makers, electronics manufacturers, and precision fabrication shops. The spiral flute design promotes chip evacuation in shallow-to-moderate depth bores, and the standard point type allows straightforward spotting and entry without requiring a pilot hole at this diameter range.

Key Features

• Wire gauge size 74, equal to 0.0224 inches decimal diameter, for micro-precision drilling
• Solid carbide construction provides hardness and wear resistance compared to high-speed steel
• 120-degree drill point angle suits a wide range of materials and reduces walking at entry
• Bright, uncoated finish maintains true diameter with no coating buildup
• Straight-cylindrical shank at 1.00 mm diameter fits standard collets and micro chuck systems
• Right-hand cutting direction, spiral flute with regular spiral type for consistent chip removal

Compatibility

Designed as an OEM-style replacement and standard tooling option for CNC micro-machining centers, precision benchtop drill presses, and any spindle accepting a 1.00 mm straight-cylindrical shank with collet or micro chuck clamping.

Installation Notes

Installation and use of this bit should be performed by qualified machinists familiar with micro-drilling operations. Ensure the machine spindle is fully stopped and powered down before inserting or removing the bit from the collet or chuck. Verify collet size matches the 1.00 mm shank diameter before clamping to prevent runout or bit breakage. At this diameter, low feed rates and appropriate spindle speeds are critical to prevent bit deflection or fracture.