Product Overview

The Kyocera 1/4 (E) DRILL 2FL 3XD TA SGS51343 is a premium solid carbide drill engineered for high-performance hole-making operations. Featuring a 2-flute design with 3xD flute length, this tool delivers exceptional chip evacuation, superior surface finish, and extended tool life in demanding CNC machining environments. Manufactured from ultra-fine grain carbide substrate with advanced TA-grade coating, it ensures consistent performance across a wide range of ferrous and non-ferrous materials.

ISO Designation Breakdown

Engineering Dimensions & Geometry

Grade Details - Key Grade Characteristics

The TA grade is a high-performance PVD-coated carbide grade specifically developed for drilling applications in steels, stainless steels, and cast irons. Key characteristics include:

• Substrate: Ultra-fine grain tungsten carbide (0.6 μm grain size) with 12% cobalt binder for optimal hardness and toughness balance
• Coating: Multi-layer TiAlN-based PVD coating with enhanced heat resistance up to 900°C
• Hardness: 92.5 HRA (1600 HV30)
• Transverse Rupture Strength: 3800 N/mm²
• Friction Coefficient: 0.35 (dry machining)
• Color: Dark copper/bronze (PVD signature)

Grade Comparison Matrix

Chipbreaker Profile

The SGS513 series features an optimized chipbreaker geometry designed for 2-flute solid carbide drills:

• Chipbreaker Type: Wide land with polished rake face
• Rake Angle: 8° positive for reduced cutting forces
• Chipbreaker Width: 0.12 mm
• Chipbreaker Depth: 0.03 mm
• Edge Preparation: T-land with 0.05 mm x 20° hone for edge stability
• Performance: Produces short, manageable chips in through-hole and blind-hole applications

Recommended Applications & Workpiece Materials

Application Map by Operation

Recommended Cutting Conditions

Note: Start at the lower range for new applications and increase gradually based on tool life and surface finish requirements.

Operating Guidelines

• Runout: Maintain spindle runout below 0.01 mm TIR for optimal tool life and hole accuracy
• Coolant: Internal coolant (through-tool) is strongly recommended for holes deeper than 2xD; minimum pressure 20 bar
• Entry Angle: Use a chamfer or center drill to prevent walk-in on inclined surfaces; minimum 0.2 mm x 90° chamfer
• Exit Strategy: Reduce feed by 30% when breaking through to minimize burr formation
• Peck Cycle: For deep holes (> 3xD), use peck drilling with 1.5xD peck depth and full retract to clear chips
• Tool Presetting: Preset tool length to ±0.02 mm for consistent hole depth control
• Storage: Store in original packaging at room temperature; avoid contact with other tools to prevent edge chipping

Toolholder Compatibility

Packaging & Ordering Information

• Packaging: Individual plastic tube with foam insert; 10 pieces per master carton
• Labeling: Each tube marked with part number, diameter, grade, batch code, and barcode
• Minimum Order: 1 piece (no MOQ for standard items)
• Lead Time: Stock items ship within 24 hours; non-stock items 2-4 weeks
• Price: $121.6 per piece (subject to volume discounts)
• Warranty: Full manufacturer warranty against material and workmanship defects

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