High-precision MPR tool bar for micro boring and inner hole machining, crafted from premium stainless steel for superior durability and corrosion resistance. Features a tungsten steel alloy tip with advanced forming technology for ultra-smooth finishes on hardened materials. Ideal for aerospace components, medical device manufacturing, and precision automotive parts requiring sub-millimeter accuracy.

Patented small-diameter design (3-12mm range) enables access to confined spaces while maintaining rigidity. Mirror-polished surface reduces friction during high-speed CNC operations (recommended 800-1500 RPM). Heat-treated core structure prevents deflection during deep-hole boring up to 8xD ratio.

Dual-purpose shank compatibility fits both ER and hydraulic chucks. Includes anti-vibration grooves that minimize chatter marks when machining stainless steel, titanium, or Inconel workpieces. Backed by ISO 9001-certified manufacturing with laser-etched size markings for tool identification.

Essential for mold makers creating injection nozzles or watchmakers crafting movement components. Delivers 3X longer tool life than standard HSS bars with our proprietary nano-coating technology. Ships pre-balanced for immediate use in Swiss-type lathes and precision grinding applications.

Bulk pricing available for OEMs needing consistent performance across production runs. Inventory stocked in US/EU warehouses for same-day shipping. Meets DIN 6527L standards with full traceability documentation.