Accupro A-6100072R Micro Drill Bit 0.0283 in Solid Carbide

Product Description

The ACCUPRO A-6100072R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. With a 0.0283-inch cutting diameter and a 120-degree drill point angle, it delivers clean, accurate entry in hard and abrasive materials where standard high-speed steel bits fall short. The bright, uncoated finish keeps the surface true without added coating thickness — critical at this diameter. The straight-cylindrical shank and spiral flute geometry promote consistent chip evacuation in miniature-scale drilling operations. This bit is installed by machinists, toolmakers, and precision fabricators working in metal, composite, or printed circuit board materials.

The A-6100072R belongs to the ACCUPRO Miniature Series, suited for small-diameter, close-tolerance drilling on CNC machining centers, drill presses, and manual precision machines. At 30.00 mm overall length and a 1.50 mm shank diameter, it fits standard miniature collets and chucks. The 5.60 mm flute length is appropriate for shallow-to-moderate depth holes typical in miniature component and electronics manufacturing applications. Right-hand cutting direction is standard for conventional spindle rotation.

Key Features

• 0.0283-inch cutting diameter for high-precision miniature drilling
• 120-degree drill point angle for stable, centered entry
• Solid carbide construction resists wear in hard and abrasive materials
• Bright, uncoated finish maintains true diameter with no coating buildup
• Spiral flute with straight-cylindrical shank for reliable chip evacuation and easy collet mounting
• Right-hand cutting direction compatible with standard CNC and manual spindles

Compatibility

Designed as an OEM-style miniature series drill bit compatible with standard collets and chucks accepting a 1.50 mm straight-cylindrical shank, suitable for CNC machining centers and precision drill presses used in small-diameter drilling operations.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians familiar with micro-diameter tooling. Ensure the machine spindle is fully stopped and the tool-holding collet or chuck is clean and undamaged before seating the bit. At sub-0.030-inch diameters, runout in the spindle or collet directly increases risk of breakage — verify runout is within the machine specification before drilling. Handle micro carbide bits with care; carbide is brittle and will fracture if dropped or laterally stressed.