Kyocera D89 PR1535 CDR00202 Drill - Heavy-Duty Steel Drilling

1. Product Overview

The Kyocera D89 PR1535 CDR00202 is a premium solid carbide drill engineered for heavy-duty steel drilling. Manufactured in Japan to exacting ISO standards, this tool combines an advanced PVD Multi-layer TiAlN coating with a precision-ground carbide substrate to deliver exceptional hole quality, dimensional accuracy, and extended tool life. Designed for modern CNC machining centers, it ensures reliable performance in high-volume production environments across aerospace, automotive, energy, and general manufacturing sectors.

2. ISO Designation Breakdown

3. Engineering Dimensions & Geometry

4. Grade Details – Key Grade Characteristics

PR1535 is a PVD Multi-layer TiAlN-coated fine-grained carbide grade specifically developed for carbon steel, alloy steel, stainless steel applications. The sub-micron WC-Co substrate (10% Co, 0.8 µm grain size) provides an optimal balance of hardness (HV 1,650) and transverse rupture strength (3,200 MPa). The PVD Multi-layer TiAlN coating layer (3.5 µm total thickness) delivers exceptional oxidation resistance up to 900°C, reducing crater wear and built-up edge formation during high-speed machining.

• Substrate: Ultra-fine WC-10Co, 0.8 µm grain size
• Coating: PVD Multi-layer TiAlN, 3.5 µm, multi-layer architecture
• Hardness: HV 1,650 ( substrate ) / HV 2,800 ( coating )
• TRS: 3,200 MPa
• Max Operating Temp: 900°C
• Oxidation Resistance: Excellent (red scale test: > 30 min at 850°C)

5. Grade Comparison Matrix

6. Chipbreaker Profile

The D89-Standard chipbreaker features a dual-land margin design with a polished flute surface. The primary land width is 0.15 × D, providing stable guidance in the hole. The secondary land creates a micro-reservoir for coolant, enhancing lubrication at the cutting edge. The flute profile is a parabolic helix optimized for chip curl radius control, producing short, manageable chips in steel and stainless steel.

7. Recommended Applications & Workpiece Materials

The D89 PR1535 is optimized for the following material groups and applications:

• Primary: Carbon Steel, Alloy Steel, Stainless Steel – through-hole and blind-hole drilling
• Secondary: Cast iron (GG25, GGG40), tool steel (H13, D2) – moderate speeds
• Tertiary: Titanium alloys (Ti-6Al-4V), nickel alloys – reduced parameters, peck cycle mandatory
• Application Types: General machining, mold & die, automotive powertrain, aerospace structural components

8. Application Map by Operation

9. Recommended Cutting Conditions

Parameters below are starting recommendations. Adjust based on machine rigidity, workpiece fixturing, and hole depth.

10. Operating Guidelines

• Runout Check: Maintain TIR < 5 µm at the tool tip for optimal performance and tool life.
• Coolant Pressure: For internal coolant tools, ensure minimum 2 MPa pressure; 3-5 MPa recommended for deep holes.
• Peck Cycle: Use peck drilling for depths > 3×D. Recommended peck increment: 0.5–1.0 × D for D88, 1.0–1.5 × D for D89.
• Entry Angle: Use chamfer or center drill pre-hole to avoid walk-in and improve positional accuracy.
• Speed Ramp: Reduce cutting speed by 15% for the first 50 holes to break in the cutting edge.
• Chip Evacuation: Ensure adequate coolant flow to flush chips. Chip packing is the #1 cause of premature failure.
• Tool Change: Monitor flank wear. Re-sharpen or replace when wear land exceeds 0.3 mm for steel applications.

11. Toolholder Compatibility

For optimal performance and tool life, use the recommended holder types below. Runout and clamping force directly affect hole quality and tool longevity.

12. Packaging & Ordering Information

13. Catalog Meta Data