Techniks SYIC-22917 End Mill Holder CAT40 Retention Knob

Description:

The Techniks SYIC-22917 End Mill Holder CAT40 with Retention Knob is used in CNC machining systems to securely clamp 1/2-inch shank end mills for precision milling, slotting, profiling, and roughing operations. Commonly installed in CAT40 vertical machining centers, horizontal machining centers, CNC milling machines, and OEM metalworking equipment requiring rigid side-lock tool holding and precise spindle alignment. Maintenance teams, CNC machinists, and manufacturing engineers use this end mill holder for tooling replacement, machining upgrades, retrofit projects, and improving machining accuracy while extending cutting tool life. 

Applications:

The Techniks SYIC-22917 End Mill Holder CAT40 with Retention Knob is designed for precision CNC machining applications requiring maximum rigidity, minimal runout, and dependable tool retention. It is widely used in aerospace manufacturing, automotive production, mold and die machining, heavy equipment fabrication, general metalworking, and high-volume CNC production where accurate end mill clamping and vibration resistance are essential. 

Technical Specifications:

• Manufacturer: Techniks Precision Tooling (SYIC)
• Manufacturer Part Number (MPN): 22917 (SYIC-22917)
• Product Type: End Mill Holder with Retention Knob
• Holder Type: Side Lock End Mill Holder (SLN)
• Taper Style: CAT40 (ANSI V-Flange)
• Bore Diameter: 1/2 in (12.7 mm)
• Projection Length: 3.00 in (76.2 mm)
• Body Diameter: 1.75 in (44.5 mm)
• Overall Diameter: 2.50 in (63.5 mm)
• Nose Diameter: 1.25 in (31.8 mm)
• Weight: Approximately 3.1 lb (1.4 kg)
• Bore Tolerance: H5 Precision Ground
• Taper Accuracy: AT3 Precision Ground
• Maximum Runout (T.I.R.): Optimized by H5 Bore Tolerance
• Balance Rating: G6.3 at 15,000 RPM
• Maximum Operating Speed: 15,000 RPM
• Coolant Compatibility: Available in Standard, CoolBLAST, and CoolFLEX Configurations
• Material: Hardened Alloy Steel
• Includes: Retention Knob (Configuration Dependent)
• Primary Function: Precision End Mill Clamping for CNC Milling Operations
• Service Application: Replacement, Retrofit, Precision Machining, and Preventive Maintenance

Common Replacements:

• Techniks SYIC-22917-2.63 CAT40 × 1/2 in End Mill Holder
• Techniks SYIC-22917-2.5B CAT40 × 1/2 in CoolBLAST End Mill Holder
• Techniks SYIC-22917-4B CAT40 × 1/2 in CoolBLAST End Mill Holder