Kyocera TBGT060102L TN60 Uncoated Cermet Micro Boring Insert with R0.2 Micro Nose Radius and Left Hand Geometry for Precision Finishing

Product Overview

TBGT060102L TN60 is genuine original Kyocera single-sided positive triangular uncoated cermet micro boring insert, specially developed for ultra-precision mirror finishing of φ5mm+ tiny deep blind inner holes of miniature thin-wall steel and stainless steel micro parts. Equipped with L left-hand dedicated cutting geometry, ultra-slim 1.59mm thin substrate and tiny R0.2 micro nose radius, each insert provides three independent reusable cutting edges to reduce single-piece tool consumption cost. Adopting TN60 coating-free anti-sticking cermet substrate, it perfectly matches STUPR06 slim left-handed micro boring bars and EZ-Bar deep tiny hole tool system. The 11° extra large positive rake drastically cuts cutting load and eliminates thin-wall elastic deformation, widely applied on Swiss sliding head automatic lathes and small precision CNC lathes for medical micro implants, automotive electronic micro sensors, miniature hydraulic micro valves and watch micro parts high-gloss batch precision machining.

Key Features

• 11° extra large positive rake sharp cutting edge design, ultra-low cutting resistance, effectively avoid deformation of ultra-thin-wall sensitive micro metal parts under light low-feed finishing parameters
• Equilateral triangular single-sided compact structure with three independent usable cutting edges, economical cost choice for high-volume micro precision finishing workshops
• Ultra-slim 1.59mm thin insert body, slim profile easily access deep narrow blind tiny holes unreachable by regular standard boring inserts
• L symmetrical left-hand exclusive cutting geometry, perfect fit miniature left internal boring bars for reverse deep inner hole ultra-fine finishing
• TN60 special uncoated cermet formula with ultra-smooth surface, minimal friction to completely solve stainless steel chip sticking and residual burr issues during high-speed continuous finishing
• Hybrid TiC-NbC hard phase substrate, excellent high-speed abrasion resistance, stable consistent mirror surface roughness for long continuous batch production
• Super-fine grain metal ceramic base, sharp yet slightly tough cutting edge, prevents micro edge chipping under stable low-feed smooth finishing
• Miniature IC6.35 compact overall size, compatible with all mainstream tiny hole micro boring bar systems for automatic lathe micro part processing
• High-precision micro positioning hole, high repeat indexing accuracy after edge replacement, uniform dimensional tolerance for long-term mass micro finishing batches

Technical Specifications

Applicable Workpiece Materials

• Mild carbon steel, 45# structural steel, low alloy structural steel, 304/316 austenitic stainless steel, free-cutting steel, low-hardness pre-hardened mold steel

Typical Industrial Application Scenarios