Cutting Insert Pafana TNMG 160408 ER BP30A

Pafana TNMG 160408 ER BP30A is a replaceable cutting insert designed for turning operations on metalworking lathes and compatible toolholders. The TNMG 160408 geometry identifies a triangular insert with a 16 mm inscribed circle and a 0.8 mm corner radius, produced to deliver accurate edge form and predictable chip flow for general turning and finishing passes. The ER grade with BP30A designation indicates the insert’s specified performance range and application focus within Pafana’s product lineup.

Advantages

The insert provides a consistent cutting edge geometry that supports dimensional accuracy and surface finish in repeated operations. Its triangular shape offers three usable cutting corners per index, improving cost efficiency. The 0.8 mm corner radius balances strength and finishing capability, reducing vibration while enabling fine surface results. Manufactured to stable tolerances, the insert is suitable for quick indexing and replacement to minimise downtime.

Suitable for

• General turning of steel and alloy materials
• Finishing passes requiring controlled surface finish
• Lathe operations using compatible TNMG toolholders
• Applications where predictable chip control and edge life are needed

Key specifications

• Insert shape: triangular (TNMG geometry)
• Inscribed circle diameter: 16 mm
• Corner radius: 0.8 mm
• Grade/family: ER with BP30A designation
• Indexable insert with three cutting edges

How to use

Install the TNMG 160408 ER BP30A insert into a compatible TNMG toolholder according to the toolholder manufacturer’s clamping instructions, ensuring correct seating and secure clamping torque. Select cutting parameters—cutting speed, feed, and depth of cut—based on the workpiece material and the ER/BP30A grade recommendations. For best results, perform a trial cut and inspect edge wear and surface finish; re-index the insert when a new corner is required, and replace the insert when wear exceeds acceptable limits.

Usage recommendations

Use coolant or appropriate cutting fluid when machining tougher alloys to improve chip evacuation and extend insert life; select speeds and feeds conservatively during initial setup and adjust based on observed cutting behavior and surface finish.