Micro Drill Bit — Precision Carbide Bits with TiN Coating Key benefits - Accurate, repeatable holes: 1.4 mm (0.055") cutting diameter provides tight, consistent holes for precision work. - Long-lasting cutting performance: solid carbide construction with TiN (titanium nitride) coating reduces friction and wear for extended tool life. - Easy tool and storage compatibility: 3.175 mm (1/8") shank fits standard 1/8" collets and chucks; includes a plastic storage box to protect bits when not in use. - Compact kit for small projects: six identical micro drill bits in one set give you spares and reduce downtime. What it does and why you need it - Designed for precision drilling where small diameter accuracy matters. These micro bits cut cleanly and resist chipping or bending under normal use, so you get reliable results when working on delicate components or detailed assemblies. - The TiN coating lowers heat and friction at the cutting edge, helping preserve bit geometry and maintaining performance across multiple holes. Specifications - Cutting diameter: 1.4 mm / 0.055" - Shank diameter: 3.175 mm / 1/8" - Cutting depth: 12 mm / 0.47" - Material: Carbide with TiN coating - Color: Silver tone (body) and gold tone (coating) - Total weight (package): 31 g - Package contents: 6 x micro drill bits, 1 x plastic box Performance and compatibility - Fits most rotary tools, micro drills, pin vises and small drill presses that accept a 3.175 mm (1/8") shank. - Suitable for drilling small holes in materials such as printed circuit boards (FR-4), plastic, resin, wood, fiberglass, and soft non-ferrous metals (e.g., copper, brass). - Cutting depth of 12 mm (0.47") supports through-holes and shallow blind holes in thin to moderate material thicknesses. Practical use scenarios - Electronics and PCB work: Cleanly drill component holes and vias in fiberglass circuit boards without oversized holes or splintering. - Jewelry and model making: Create precise holes in metal, resin, and wood components for assembly, wire posts, or mounting hardware. - Prototyping and 3D printing: Finish or clean out printed holes and small bores in PLA, ABS, resin, or other prototyping materials. What’s in the box - Six (6) identical 1.4 mm micro carbide drill bits with TiN coating and one (1) plastic storage box for safe transport and organization. Practical tips - Secure workpiece and use appropriate speed for material to extend bit life. - Replace bits once wear or chipping is visible; having six bits in the kit gives immediate spares for uninterrupted work. This micro drill bit set provides precise 1.4 mm drilling with durable carbide construction and TiN coating, in a convenient 6-piece kit with storage, compatible with standard 1/8" tool collets.