Accupro A-6100079R Micro Drill Bit Size 68 Solid Carbide

Product Description

The ACCUPRO A-6100079R is a solid carbide micro drill bit designed for precision drilling in small-diameter applications. Sized to wire gauge No. 68, it produces a 0.0311-inch diameter hole with a 120-degree standard point angle. The spiral flute geometry clears chips efficiently during through-hole and blind-hole operations. At 30 mm overall length with a 1.50 mm straight-cylindrical shank, this bit fits standard micro drill chucks and collet holders. The bright, uncoated finish keeps the carbide substrate exposed for clean entry into a range of workpiece materials. Right-hand cutting direction is standard for conventional drill press and CNC spindle rotation.

This micro drill bit is suited for precision machining tasks in electronics, instrument manufacturing, medical device fabrication, and other industries that require consistently accurate small-diameter holes. It fits into applications where standard jobber-length bits are too large and where hole location accuracy and clean entry are critical. The miniature series designation indicates its design intent for light-duty, tight-tolerance work on benchtop mills, drill presses, and CNC machining centers running appropriate low-feed, high-speed parameters for carbide tooling.

Key Features

• Wire gauge No. 68 size produces a 0.0311-inch diameter hole
• 120-degree standard point angle for accurate positioning at drill entry
• Solid carbide construction for rigidity and wear resistance in micro-diameter drilling
• Spiral flute with regular helix for efficient chip evacuation
• Bright, uncoated finish — no coating buildup at tight tolerances
• Straight-cylindrical shank at 1.50 mm diameter fits standard micro collets and chucks

Compatibility

Designed as an OEM-style micro drill bit for use in standard straight-shank micro collets and drill chucks accepting a 1.50 mm shank diameter.

Installation Notes

Installation and use of this bit should be performed by machinists or tooling technicians familiar with micro-diameter carbide tooling. Always secure the shank fully in the collet or chuck before operation and verify runout is within acceptable limits for the application. Carbide micro bits are brittle — avoid lateral loading, interrupted cuts without appropriate feed reduction, and contact with hard inclusions in the workpiece. Power down the spindle completely before changing or inspecting the bit.