Kyocera SGM PR1530 SGM02345 End Mill - CNC Milling

1. Product Overview

The Kyocera SGM Series 0.038" Solid Carbide End Mill (MPN: SGM02345) is a precision-engineered 4-flute square-end tool designed for high-performance CNC milling operations. Manufactured in Japan using Kyocera's proprietary carbide substrate technology and advanced PVD coating processes, this end mill delivers exceptional surface finish quality, dimensional accuracy, and extended tool life across a wide range of workpiece materials.

Featuring a 0.97 mm cutting diameter with a 4-flute configuration and 30° helix angle, this tool is optimized for both roughing and finishing applications in general engineering, mold & die, aerospace, and automotive manufacturing sectors. The square-end geometry ensures precise 90° corner profiles and clean shoulder milling.

2. ISO Designation Breakdown

3. Engineering Dimensions & Geometry

4. Grade Details - Key Grade Characteristics

PR1530 - Hardened Steel Grade

5. Grade Comparison Matrix

6. Chipbreaker Profile

The SGM series features a precision-ground chipbreaker geometry optimized for the 0.97 mm diameter. The chipbreaker profile includes:

• Primary Rake Face: Polished to Ra 0.2 μm for minimal friction and built-up edge prevention
• Chipbreaker Groove: Width 0.15 mm, depth 0.03 mm — designed to curl and break chips into manageable 5-15 mm lengths
• Secondary Land: 0.08 mm width at 15° for edge reinforcement and improved wear resistance
• Edge Preparation: T-land honing (0.02 mm × 20°) for micro-chipping resistance
• Flute Profile: Parabolic flute form with constant helix for smooth chip evacuation and reduced chatter

7. Recommended Applications & Workpiece Materials

8. Application Map by Operation

9. Recommended Cutting Conditions

Based on the PR1530 grade and 0.97 mm cutting diameter, the following parameters are recommended for stable machining:

Note: Values are starting recommendations. Actual parameters should be adjusted based on machine rigidity, workpiece clamping, and coolant conditions. For slotting operations, reduce cutting speed by 20% and feed rate by 15%.

10. Operating Guidelines

• Runout Check: Verify tool runout at the tool tip is ≤ 0.01 mm. Excessive runout causes uneven wear and premature failure.
• Coolant Recommendation: Use water-soluble coolant at 5-8% concentration for steel and stainless steel. For aluminum, use neat oil or minimum quantity lubrication (MQL) to prevent built-up edge.
• Entry Strategy: Use helical or ramp entry at 1-2° angle. Avoid direct plunging with square-end tools.
• Depth of Cut: For roughing, maintain ap ≤ 1.0×D and ae = 0.3-0.5×D. For finishing, use ap = 0.1-0.2×D and ae = 0.05-0.1×D for mirror surface finish.
• Chip Evacuation: Ensure adequate coolant pressure (≥ 3 bar) or compressed air blast to prevent chip recutting, especially in pocketing and deep cavity operations.
• Tool Life Monitoring: Monitor flank wear (VB). Resharpen or replace when VB exceeds 0.15 mm for roughing or 0.08 mm for finishing.
• Storage: Store in original packaging at 15-25°C, humidity < 60%. Avoid contact with other tools to prevent edge damage.

11. Toolholder Compatibility

The 3.0 mm cylindrical shank is compatible with the following toolholder systems:

Recommended: For high-speed applications (>20,000 min⁻¹), use shrink-fit or hydraulic chucks to minimize runout. For general applications, precision ER collet chucks (ER11 or ER16) with ≤ 0.005 mm runout are sufficient.

12. Packaging & Ordering Information

13. Catalog Meta Data

All specifications and data are provided in good faith based on manufacturer documentation. For critical applications, please consult Kyocera's technical support team or your local distributor for application-specific recommendations.