Product Overview

The Kyocera 11/16 DRILL 2FL 8XD TA IC SGS51835 is a premium solid carbide drill engineered for demanding CNC machining environments. Manufactured in Japan to exacting ISO 9001 standards, this drill delivers exceptional hole quality, dimensional stability, and extended tool life across a broad spectrum of workpiece materials. The 8XD flute design optimizes chip evacuation in deep-hole applications, while the TA IC grade substrate provides outstanding wear resistance and thermal stability.

ISO Designation Breakdown

Engineering Dimensions & Geometry

Grade Details – Key Grade Characteristics

The TA IC grade represents Kyocera's advanced micro-grain carbide technology combined with a proprietary TiAlN (Titanium Aluminum Nitride) multi-layer PVD coating. This synergistic material system delivers:

• Hardness: 1,650 HV (Vickers) substrate hardness for exceptional abrasion resistance
• Oxidation Resistance: Coating stable up to 900°C, enabling high-speed dry machining
• Coef. of Friction: 0.35–0.40 against steel, reducing built-up edge and heat generation
• Coating Thickness: 2.5–3.5 μm multi-layer architecture for balanced toughness and wear resistance
• Grain Size: 0.8 μm ultra-fine tungsten carbide grain structure for superior edge integrity

Grade Comparison Matrix

Chipbreaker Profile

Although this is a solid carbide drill, the flute and point geometry incorporate advanced chip management features equivalent to insert chipbreaker designs:

• Flute Profile: Parabolic flute form with polished surface (Ra 0.2 μm) to minimize chip adhesion and facilitate smooth evacuation
• Margin Design: Dual-margin configuration with honed cutting edges (0.03–0.05 mm chamfer) to stabilize the drill and reduce vibration
• Point Geometry: Thinned web design reduces thrust forces by up to 25% compared to standard split-point drills, minimizing heat at the chisel edge
• Edge Preparation: Micro-honed cutting edge (T-land) with 15° positive rake angle for reduced cutting forces and improved surface finish

Recommended Applications & Workpiece Materials

Application Map by Operation

Recommended Cutting Conditions

Operating Guidelines

• Peck Cycle: For 8XD drills, use a peck depth of 1.5–2.0×D with full retract to break chips. Ensure adequate coolant flow to the flute area.
• Runout Tolerance: Maintain spindle runout ≤ 0.01 mm at the tool tip. Excessive runout accelerates corner wear and reduces hole quality.
• Coolant Pressure: Minimum 20 bar (290 psi) for 8XD applications; 70+ bar preferred for deep-hole production to ensure chip evacuation.
• Pre-Drilling: For inclined or curved surfaces, use a spot drill or center drill to create a 90° entry. Do not plunge directly into uneven surfaces.
• Tool Life Monitoring: Replace the drill when flank wear (VB) reaches 0.15 mm or when burr formation at the hole exit increases. Do not re-sharpen PVD-coated drills.

Toolholder Compatibility

Packaging & Ordering Information

• Packaging: Each drill is individually sealed in a nitrogen-purged anti-corrosion pouch with VCI (Volatile Corrosion Inhibitor) paper, then placed in a rigid plastic tube.
• Minimum Order: 1 piece. Bulk pricing available for quantities of 10+.
• MPN: SGS51835 — Verify this part number against your machine tool catalog before ordering.
• Price: 1188.1 — Competitive OEM pricing with full manufacturer warranty.
• Stock Status: Available for immediate dispatch. Lead time for back-orders: 4–6 weeks.

Catalog Meta Data

Need application support? Our technical team can help you select the optimal cutting parameters for your specific material and machine setup. Contact us with your part number SGS51835 for personalized assistance.