T-Max U-Lock Internal threading

T-Max U-Lock® is a complement to the CoroThread 266 rigid indexable insert threading system. It provides a specialized solution for 11 mm (0.433 inch) internal threading applications in three different geometries: all-round, sharp and a chip breaking C-Geometry.

Benefits

• Cost efficient solution with three cutting edges
• Tailor Made inserts available

Features

• Indexable inserts
• 11-size IC = ¼” = 6.35 mm.
• Tailor Made inserts available
• Three sharp cutting edges for high quality threads
• Thread profiles for V-profile 55° and 60°
• Three different geometries: all-round, sharp and a chip breaking
  C-Geometry.

Application

• Internal threading
• Minimum hole size: 12 mm (0.472 inch).
• Insert geometries and grades for all materials apart from ISO H
• The tool holder for inserts with size 11 is made for a 2° inclination angle and no shim

ISO appliocation area

Recommendations

• GC 1020 – Good all round PVD-coated grade suitable for ISO P, M, K, N & S materials. Good wear resistance and edge sharpness.
• GC 4125 – Used as an optimizing PVD-coated grade for various steel threading operations.

Geometries 

• Standard geometry, first choose in most operations
• Sharp F-geometry, clean cuts in sticky or work hardening materials
• Chip breaking geometry, for maximum chip control and minimum supervision

Tool holding 

• Coromant Capto cutting units, size C3 and C4
• Boring bar Ø 16 + step boring bar with reduced diameter 16 to 12 (Ø ⅝”, ⅝” reduced to ½”)
• SL cutting heads coupling size Ø 16 and 20 mm.

Product range 

• General usage for all segments of engineering industry
• V-profile 60°
• V-profile 55°
• Metric 60°
• Unified, UN 60°
• Pipe fittings and couplings for gas, water and sewage
• WhithWorth 55°
• National Pipe Thread NPT 60