S20R-SDUCR11 Internal Turning Tool Holder

The S20R-SDUCR11 is a high-precision internal turning tool holder designed for boring and profiling operations on CNC lathes and conventional machines. With its robust construction and optimized clamping system, it is engineered to hold DCMT carbide inserts securely, ensuring accuracy, stability, and long tool life.

The tool holder features a 20 mm shank diameter and a right-hand cutting direction, making it suitable for internal turning, boring, and fine profiling inside holes and cavities. Its design reduces vibration during machining, providing smooth surface finishes and consistent dimensional accuracy. The SDUCR-style pocket ensures precise insert positioning and strong clamping for reliable performance under a wide range of cutting conditions.

The S20R-SDUCR11 is widely applied in industries such as precision engineering, mold-making, and automotive manufacturing, where high repeatability and precision are critical. Combined with DCMT inserts, it offers flexibility for semi-finishing and finishing applications, making it a dependable choice for internal machining tasks.

Code Breakdown:

• S – Type of shank (straight shank holder)

• 20 – Shank diameter: 20 mm

• R – Cutting direction: right-hand

• SD – Insert clamping style: screw clamp for DCMT inserts

• U – Insert geometry style

• C – Insert shape: diamond 80° (C-type)

• R – Right-hand holder type

• 11 – Insert size: for DCMT 11T3 inserts

Key Features:

• Internal turning and boring tool holder

• Shank diameter: 20 mm

• Right-hand cutting direction

• Compatible with DCMT 11T3 inserts

• Strong clamping for rigidity and accuracy

• Reduces vibration for smooth finishing

• Ideal for boring, profiling, and fine internal machining

Compatible Inserts:

• DCMT 11T304 / 11T308 series