MST Corporation – Advanced Tooling Solutions for High-Precision Machining

MST Corporation, founded in Japan, is globally respected for its dedication to ultra-precision tool holding and modular clamping systems. With a history dating back over 80 years, MST continues to lead the way in innovative solutions that improve machine tool accuracy, increase productivity, and reduce cycle times, especially in high-speed, high-tolerance industries such as aerospace, mould and die, and medical component manufacturing.

Mono Curve – Ultra-Slim Holders for 5-Axis Machining

MST’s Mono Curve holders are engineered specifically for tight-access, high-precision machining in 5-axis and multi-tasking environments. These holders provide the rigidity and precision of monoblock construction with a uniquely curved and tapered profile to maximise clearance.

Key Benefits:

  • Ultra-slim, tapered design ideal for deep cavity milling

  • Excellent interference avoidance in complex workpieces

  • Runout accuracy within 0.003 mm

  • Available for HSK, BT, and CAT tapers

  • Compatible with MST’s Slim Collet System for exceptional holding security

✅ Best suited for mould & die, medical, and aerospace components.

curve1_e

  • Ultra Precision Slim Collet Chucks – Perfect for 5-Axis Machining

    MST’s Slim Collet Chuck series combines slimness and gripping force with precise concentricity, designed for high-speed spindles and tight workspace operations.

    Benefits:

    • Interference-free profile for deep cavities and fine features

    • 0.003 mm runout for better tool life and finish

    • aOptional coolant-through versions

    • Compatible with a wide range of collet types (ER, MST Slim Collet)

Angle Heads – Extend Machining Capability Without Repositioning

MST’s Angle Head attachments allow machines to reach complex features without reclamping or altering workpiece orientation. These compact, robust heads are available in multiple types and torque capacities.

Product Range:

  • Standard 90° Angle Heads

  • Adjustable Type (±90° with indexing)

  • Slimline Types for tight spaces

  • Mini Angle Heads for ultra-small tool access

Key Features:

  • Designed for internal coolant supply

  • Fully balanced and heat-treated for durability

  • Compatible with most machine tapers (BT, CAT, HSK)

  • Maximize productivity in tight machining zones or side-wall operations

✅ Ideal for machining undercuts, side holes, and features inaccessible with standard tools.

angle_head_h03_e1-686x285

Shrink Fit Tooling – iHolder & Smart Shrink Systems

MST’s Shrink Fit systems are engineered for precision, balance, and ease of use, helping shops achieve long tool life and exceptional surface finish, especially in high-speed machining.

iHolder Series:

  • Compact, rigid design optimised for 5-axis clearance

  • Runout under 3 microns at 4xD

  • Air-cooling compatible—no external chiller required

  • Balanced up to 40,000 RPM

Smart Shrink Units:

  • Desktop or trolley-based induction units

  • Fast heating/cooling cycles for quick tool changes

  • Easy interface with digital temperature controls

✅ Best for finish machining, hard milling, and tool life optimisation.