• Made of Special Alloy Steel
• Surface hardened to 62 HRC
• All critical surfaces are ground.
• Dynamically balanced to G2.5 at 20,000RPM
• Taper to bore runout <0.0002″
• D1 : 3/8
• D2 : 1.26″
• Gauge length L : 2.5″
• Pull Stud thread : 5/8-11
• Coolant thru capability

This END MILL HOLDER CAT40-E5/8-4″ has:

• Made of Special Alloy Steel
• Surface hardened to 62 HRC
• All critical surfaces are ground.
• Dynamically balanced to G2.5 at 20,000RPM
• Taper to bore runout <0.0002″
• D1 : 5/8
• D2 : 1.60″
• Gauge length L : 4″
• Pull Stud thread: 5/8-11
• Coolant thru capability

• Made of Special Alloy Steel
• Surface hardened to 62 HRC
• All critical surfaces are ground.
• Dynamically balanced to G2.5 at 20,000RPM
• Taper to bore runout <0.0002″
• D1 : 7/16
• D2 : 2″
• Gauge length L : 5″
• Pull Stud thread : 5/8-11
• Coolant thru capability