Tungaloy Expands DoTwistBall Series with New Shell Mill Diameters


Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon
Tungaloy DoTwistBall

Tungaloy has expanded its DoTwistBall line of copy milling cutters to include additional shell mill diameters. DoTwistBall is designed to provide reliability during complex 3D milling processes. The insert features a helically twisted structure, which fits the cutter seat constructed in a matching helical profile. This design provides secure insert positioning and installation with anti-twist protection during machining, the company says. In addition, the thick design of the insert helps to withstand machining impact, preventing insert fracture.

The cutter body can accommodate either round LNMX-MJ inserts with 4.0-, 5.0-, or 6.0-mm nose radii or LNMX-HJ inserts for high-feed milling, making the cutter potentially effective for machining complex curved surfaces typical in the die/mold industry. The new cutter diameters include 42, 52 and 63 mm in popular shell mill bodies to accommodate the LNMX04 inserts.

Related Topics


  • Tool Considerations for High Speed Cutting

    Fast CNC processing and high-pressure coolant contribute to removing metal at dramatic rates. But what should a shop know about cutting tools in high speed machining?

  • Rolling Threads Has Advantages

    With macros and canned cycles resident in the CNC on most contemporary turning centers, single point turning of OD threads can seem like almost a default process decision. However, for numerous applications, OD thread rolling has inherent advantages as an alternative to cutting threads.

  • Taking The Fear Out Of Hard Turning

    To make the transition to hard turning, you'll need to switch from carbide to CBN inserts, but that is easier (and more economical) than you might think. It's making the jump to much higher surface speeds that might scare you off. It needn't. Here's why.