Accupro A-6100133R Micro Drill Bit 1.33mm Solid Carbide

Product Description

The ACCUPRO A-6100133R is a solid carbide micro drill bit designed for precision drilling in miniature and tight-tolerance applications. At 1.33 mm (0.0524 inches) in diameter, this bit is engineered for controlled, accurate hole placement where standard drill bits are too large. The 120-degree drill point angle and right-hand spiral flute geometry support clean entry and chip evacuation in a variety of workpiece materials. With an overall length of 30.00 mm and a straight-cylindrical shank measuring 1.50 mm in diameter, it fits collet-style and precision chuck setups commonly found in CNC drilling centers and bench drill presses.

This micro drill bit suits professionals and machinists working in electronics manufacturing, PCB fabrication, instrument repair, watchmaking, medical device production, and other fields that demand small-diameter, high-accuracy drilling. The miniature series designation indicates it is built for applications where hole diameter and positional accuracy are critical. It is sold individually (package quantity of 1) with a minimum order quantity of 10 units, making it appropriate for shop-floor stocking or volume production runs.

Key Features

• Solid carbide construction for rigidity and wear resistance in precision drilling
• 1.33 mm (0.0524 inch) cutting diameter for miniature-scale hole requirements
• 120-degree standard point angle for stable entry and reduced walking
• Straight-cylindrical shank at 1.50 mm diameter for collet and precision chuck compatibility
• Right-hand cutting direction with regular spiral flute for standard chip clearance
• Bright/uncoated finish — no coating to alter the finished diameter or add brittleness at this scale

Compatibility

Designed as an OEM-style miniature series drill bit compatible with collet-style holders and precision chucks accepting a 1.50 mm straight-cylindrical shank, typical of CNC drilling centers and precision bench presses used in electronics and fine machining applications.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator familiar with micro tooling setup. Secure the shank fully in a collet or precision chuck rated for the 1.50 mm shank diameter before operation. At this diameter, solid carbide bits are brittle — avoid lateral loading, interrupted cuts without proper feed reduction, or hand-torquing in a standard keyed chuck without a precision collet. Inspect the bit for chipping or runout before each use, as micro-diameter tooling is susceptible to fracture under even minor misalignment.