3/8 R8 END MILL HOLDER Shop'sChoice™

T0305

Specifications & Tolerances

• HIGHEST ACCURACY: Taper to Bore Runout < 0.0005" T.I.R.
• HIGHEST TOLERACE: H7 or Better Bore Tolerance.
• HIGH QUALITY STEEL: Made of High Quality Chromium STEEL..
• HIGH QUALITY STEEL: Made of High Quality Chromium STEEL..
• PRECISION BALANCED: G6.3 X 6,000 RPM CERTIFIED..
• Hardened & Ground Bore
• Draw Bar Thread Size: 7/16"-20
• QUALITY CONTROL: 100% Inspection of all Tool Holders
• Veteran Owned Business

Applications

• Secure End Mill Retention for Heavy Milling Operations: The Weldon-style set screw design locks securely onto the end mill flat, providing excellent holding power during aggressive roughing, slotting, and side milling operations where tool pullout must be prevented.
• Improved Accuracy for Precision Machining: The precision-ground R8 taper and accurately machined bore help minimize runout, resulting in improved dimensional accuracy, better surface finishes, and extended cutting tool life.
• Ideal for Bridgeport and Manual Milling Machines: Designed specifically for R8 spindle machines, these holders provide a rigid and dependable connection between the spindle and cutting tool, making them well suited for toolrooms, maintenance departments, and production environments.
• Enhanced Rigidity for Increased Cutting Performance: Unlike collet systems that can introduce additional deflection, solid end mill holders provide maximum rigidity, allowing machinists to achieve more consistent results when machining steel, stainless steel, cast iron, and other demanding materials.
• Fast Tool Changes and Repeatable Setup: End mills can be quickly installed and removed while maintaining consistent tool positioning, reducing setup time and improving productivity for repetitive machining operations and production runs.