Side Lock Weldon Style CAT40 End Mill Holder 1.75 Inch Length EM3/4 For Precision Milling, 0.0002 Inch TIR, 25,000 RPM, 0.005 MM Runout, Pro Grade Carbon Steel, Made In USA, Precision Ground

Premium CAT40 end mill holder for precision milling
✔️ CAT40 holder with 3/4 inch (19.05 mm) hole, 1.75 inch (44.45 mm) length, under 0.0002 inch (0.005 mm) TIR, up to 25,000 RPM

This end mill holder is a side lock Weldon style tool that securely grips end mills for accurate machining. It's typically used in CNC routers and milling machines for metalworking and fabrication in workshops or factories.

✅ CAT40 taper for standard machine compatibility
✅ 3/4 inch (19.05 mm) hole diameter for 3/4 inch end mills
✅ 1.75 inch (44.45 mm) projection length for versatile reach
✅ Less than 0.0002 inch (0.005 mm) runout for tight precision
✅ Rated for 25,000 RPM to handle high-speed jobs

💡 What makes runout tolerance key in milling tools?
This ensures your setup stays spot-on, cutting down errors in daily work. To break it down:
- Keeps vibrations low for smoother operations
- Boosts tool longevity by avoiding uneven wear
- Delivers cleaner cuts on tough materials
- Supports faster production without sacrificing accuracy