Kyocera 1/2 WF SGS38065 | ENDMILL - CNC Milling Kyotow.com

1. Product Overview

The Kyocera 1/2 ENDMILL 4FL 0.045R General Purpose SGS38065 is a premium solid carbide endmill engineered for high-performance CNC milling operations featuring a Weldon Flat shank for secure side-lock toolholder mounting. Manufactured in Japan to exacting ISO 9001 standards, this 4-flute design balancing material removal rate with surface finish quality features a 0.045r corner radius design optimized for superior surface finish and extended tool life in demanding production environments. The advanced carbide substrate with multi-layer PVD coating ensures reliable performance across diverse machining applications.

2. ISO Designation Breakdown

3. Engineering Dimensions & Geometry

4. Grade Details – Key Grade Characteristics

The General Purpose grade represents Kyocera's advanced coating technology, engineered for reliable all-around machining performance.

5. Grade Comparison Matrix

6. Chipbreaker Profile

The SGS38065 features an optimized chipbreaker geometry specifically designed for 4fl roughing-to-finishing milling. The flute profile incorporates a variable helix design (35° primary helix with 32°-38° variation) that breaks harmonic vibration and ensures stable chip evacuation even at aggressive depths of cut.

7. Recommended Applications & Workpiece Materials

This endmill is ideally suited for the following material groups and application scenarios:

• Carbon Steels (AISI 1010–1055): Excellent performance in roughing to finishing operations. Recommended for die and mold manufacturing.
• Alloy Steels (AISI 4140, 4340): Ideal for aerospace components and automotive transmission parts requiring tight tolerances.
• Stainless Steels (304, 316, 17-4PH): Versatile performance across a wide range of materials.
• Cast Irons (GG20–GG40, GGG50): High wear resistance ensures consistent performance in gray and ductile iron machining.
• Tool Steels (<45 HRC): Suitable for general engineering and prototype work.
• General Engineering: Versatile enough for prototype work, small-batch production, and high-volume manufacturing.

8. Application Map by Operation

9. Recommended Cutting Conditions

The following parameters serve as starting recommendations. Always optimize based on machine rigidity, workpiece setup, and coolant delivery.

Note: Vc = Cutting speed; fz = Feed per tooth; ap = Axial depth of cut; ae = Radial depth of cut. Values assume stable machine conditions and adequate coolant.

10. Operating Guidelines

• Tool Runout: Maintain maximum runout of 0.01 mm at the tool tip. Excessive runout will reduce tool life dramatically.
• Coolant Recommendation: Use high-pressure through-spindle coolant (70+ bar) for best chip evacuation and thermal management. External flood coolant is acceptable for lower-speed operations.
• Entry Strategy: For pocket milling, use helical ramping or pre-drilled entry holes. Avoid direct plunge into solid material where possible.
• Depth of Cut: For finishing, use ae = 0.1–0.2 × D1. For roughing, ae up to 0.5 × D1 is acceptable with reduced speeds.
• Chip Load: Start at the lower end of the recommended fz range and increase gradually while monitoring tool wear and surface finish.
• Tool Life Monitoring: Inspect cutting edges after every 30 minutes of cutting time. Look for uniform flank wear; replace when VBmax = 0.2 mm.
• Storage: Store in original packaging away from moisture and corrosive atmospheres. Avoid contact between cutting edges.

11. Toolholder Compatibility

Weldon Flat design provides secure mechanical drive engagement, preventing tool pull-out during heavy milling operations.

12. Packaging & Ordering Information

13. Catalog Meta Data

Need technical support? Our CNC tooling specialists are available to help you select the optimal cutting parameters and toolholder combinations for your specific application. Contact Kyotow.com technical support for assistance.