T2139: The specific indexable structural series code for this ball head finishing mill system.
12.5R: Denotes a 12.5 mm ball nose radius. This yields an effective outer cutting diameter of exactly 25 mm across the widest tip path
C25: Indicates a 25 mm straight cylindrical shank diameter. It features a seamless 1:1 diameter ratio matching the cutting head, allowing uniform side-clearance inside narrow structural steps.
200L: Signifies a lengthened overall tool layout measuring 200 mm long from the tip to the back of the shank, providing the deep-reach access required for tall cavity molds.
1T: Specifies 1 Tooth (Single Flute / Pocket). Ball nose finishers of this nature use one large, full-round indexable carbide insert seated across the center axis to ensure a true, un-interrupted cutting geometry at the center pivot.
Technical Parameter
Engineering Guideline
Insert Compatibility Fits full-round P3200-D25 or P320-D25 layout carbide inserts.
Deflection Resistance The core body uses high-tensile 42CrMnTi steel alloy treated with an anti-vibration arc profile to suppress chatter at deep extensions.
Operation Focus Strictly designed for semi-finishing to super-finishing profiles. Avoid using this tool for heavy structural roughing.