
FREE CNC SOFTWARE, MACROS, APPS AND MORE FOR ALL CONTROLS
DOWNLOAD POWERFUL CNC TOOLS, MACRO PROGRAMS, AND APPLICATIONS DESIGNED FOR REAL MACHINING ACROSS FANUC, SIEMENS, HAAS, OKUMA AND MORE.
BUILT FOR MACHINISTS. TESTED IN REAL PRODUCTION ENVIRONMENTS.
Bolt-Hole Circle & Helical Milling Generator
Generate controller-specific CNC macro programs and inspect the machining sequence with an animated 3D toolpath preview. Configure the BHC diameter, number of holes, cutter size, pitch and depth directly in your browser.
Eccentric Turning Macro Visualizer
Configure an eccentric turning cycle and use the complete synchronized chuck, workpiece, tool and toolpath simulation. Code generation is reserved for CNC Automation Pro customers.
CNC Thread Depth & Fit Visualizer
Enter the nominal metric thread diameter and pitch, then calculate separate ISO 6g / 6H machining limits for both mating parts. Enter measured bolt and nut dimensions to estimate or verify the assembled fit.

RCTF CALCULATOR – RADIAL CHIP THINNING TOOL
Take full control of your CNC cutting performance with this powerful RCTF (Radial Chip Thinning Factor) calculator. This software automatically calculates the correct chip thinning compensation when machining with light radial engagement, ensuring your feedrates are optimized instead of undercutting tool performance.
Simply enter your tool diameter, radial depth, material, RPM, and feed per tooth — the app instantly calculates the correct adjustment and outputs optimized cutting values. This helps increase material removal rates, improve surface finish, and extend tool life without risking tool damage.
Built for real machining environments, the calculator includes a wide range of material presets, supports both metric and imperial units, and provides fast, accurate results in real time.
Whether you’re a CNC machinist, programmer, or engineer, this tool removes guesswork and gives you confidence in every cut.

Included FREE with CNC Automation Pro – 2026
Get this software included with full Macromill membership and unlock the complete CNC automation platform.
✔ Included with full package
✔ Access to all CNC software tools
✔ Future updates included
✔ One-time access — no subscription
RCTF Calculator – Radial Chip Thinning Tool
Calculate the correct chip-thinning compensation for light radial engagement. Enter cutter diameter, radial depth, material, RPM and feed per tooth to generate optimized cutting values for stronger tool performance, surface finish and tool life.
MACROMILL™ is a registered CNC training and solutions provider. © 2020–Present. All rights reserved.