Indexable Turning Insert PAFANA SNMG 120404 SS BP30A by Pafana

Indexable turning insert PAFANA SNMG 120404 SS BP30A by Pafana is a negative rhombic carbide insert designed for general metalcutting turning operations. The SNMG 120404 geometry indicates a 12 mm inscribed circle and a 0.4 mm nose radius, suitable for a range of external and internal turning, facing and light profiling tasks. Made in BP30A grade, the insert is intended to provide stable performance on a variety of steels and common ferrous materials when used in compatible toolholders.

Advantages

The SNMG 120404 SS BP30A insert combines a robust negative geometry with a small nose radius for improved edge strength and repeatable indexing. Its rhombic shape allows four cutting edges per insert and good accessibility in confined or angled turning operations. The BP30A grade balances toughness and wear resistance for reliable life in general turning applications, reducing downtime associated with frequent insert changes.

Suitable for

• External turning of medium- to high-alloy steels
• Internal turning and boring where negative inserts are required
• Facing operations on shafts and shoulders
• Light profiling and finishing passes with a 0.4 mm nose radius

Key specifications

• Geometry: SNMG (rhombic negative shape)
• Inscribed circle: 12 mm
• Nose radius: 0.4 mm
• Grade: BP30A (carbide grade optimized for general turning)
• Cutting edge count: up to four indexable edges per insert
• Typical applications: external/internal turning, facing, light profiling

How to use

Install the SNMG 120404 SS BP30A insert into a compatible negative geometry toolholder according to the holder manufacturer’s clamping instructions, ensuring secure and accurate seating. Select cutting parameters (cutting speed, feed and depth of cut) appropriate for the material being machined and the BP30A grade characteristics; start with conservative parameters and adjust for chip formation and stability. Index the insert to a fresh edge when wear affects surface finish or dimensional accuracy, and verify tool runout and holder rigidity to ensure consistent results.

Usage recommendations

Use coolant or appropriate cutting fluid for extended tool life when machining steels and tougher alloys. For best results, combine the SNMG 120404 SS BP30A insert with a rigid toolholder and minimal overhang; monitor tool wear and adapt feeds and speeds for finishing or roughing passes.