Kyocera PVLNR2525M-16Q – External Turning Toolholder (THC01150, 25×25 mm Shank)

Kyocera PVLNR2525M-16Q – External Turning Toolholder (THC01150, 25×25 mm Shank)

The Kyocera PVLNR2525M-16Q (Item no. THC01150) is a high-rigidity, right-hand external turning toolholder designed for general turning and copy-turning applications. It features a 25 mm × 25 mm square shank, a total length (OAL) of 150 mm, and a head length of 37 mm, making it suitable for stable cutting on medium- to large-size lathes.

This toolholder accepts 16-size negative-rake turning inserts (VN-style) and uses a lever/pin lock system for secure insert clamping — ensuring strong insert seating, consistent cutting performance, and easy insert replacement.

Key Features & Benefits

• 25 × 25 mm shank — provides high rigidity and stability, even under heavy cutting loads.
• Right-hand orientation — ideal for standard turning machine setups.
• Total length 150 mm with 37 mm head length — offers good overhang and reach for external operations while maintaining overall stiffness.
• Compatible with 16-size VN-style negative-rake inserts — suitable for a broad range of materials and turning tasks.
• Lever/pin-lock insert clamp — ensures secure insert seating and quick insert changes.
• No internal coolant — simple, maintenance-free external turning configuration.

Technical Specifications

• Item No: THC01150
• Model: PVLNR2525M-16Q
• Shank Width (B): 25 mm
• Shank Height (H): 25 mm
• Cutting Direction: Right-hand
• Insert Size: 16 (VN-style, negative-rake)
• Total Length (OAL): 150 mm
• Head Length (LH): 37 mm
• Coolant: None (no internal coolant)
• Typical Use: External turning, copy-turning, general machining

Kyocera’s PVLNR-series toolholders are known worldwide for their precision machining performance, offering a balance of rigidity, versatility, and ease of use — ideal for production shops, general engineering, and industrial machining environments.