CSJ Crown Drill Bit,10D Drill Diameter Range 14.00-14.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

1. Short Description

The CSJ Crown Drill Bit (10D Series, Ø14.00–14.99 mm) is a premium indexable deep-hole drilling system designed for high-speed, high-precision machining. Engineered with advanced quench-hardening and cryogenic heat treatment, internal dual-coolant channels, optimized chip-evacuation flutes, and a rigid front/side-locking mechanism, it delivers superior chip removal, exceptional tool longevity, and maximum efficiency in demanding deep-hole operations.

2. Product Introduction

The CSJ Crown Drill Bit System integrates the rigidity of solid carbide drills with the cost efficiency and convenience of indexable tooling. Engineered specifically for deep-hole drilling with depth-to-diameter ratios up to 10×D, this tool body features:

• Quench-Hardened & Deep Cryogenic Treatment: Enhances holder toughness, tensile strength, and fatigue resistance during heavy-duty cutting.

• Internal Coolant Channels & Extended Chip Flutes: Delivers high-pressure coolant directly to the cutting edge to reduce heat buildup and ensure smooth, continuous chip evacuation in deep holes.

• Precision Front & Side-Locking Mechanism: High-accuracy keyway positioning combined with a side-locking design prevents insert slippage under heavy torque.

• Cost-Effective Replaceable Crown Tip: Allows quick on-machine tip changes without removing the holder, significantly reducing tool changeover time and inventory costs.

3. Product Specifications

4. Product Functions & Benefits

• High-Efficiency Deep-Hole Machining: Enables 10D deep holes to be drilled in a single continuous pass without frequent pecking cycles, dramatically shortening cycle times.

• Superior Thermal Control & Evacuation: Dual internal coolant channels lower cutting zone temperatures and force chips out smoothly, preventing tool jamming or breakage.

• Reduced Tooling Costs: Reusable heavy-duty drill body requires replacing only the carbide crown tip when worn, lowering long-term operational costs.

• High Hole Precision & Stability: Tight keyway lock and rigid body construction minimize chatter and runout, ensuring accurate hole diameters and smooth wall surface finish.

5. Application Scenarios

• Applicable Machinery:

  • CNC Machining Centers (VMC / HMC)

  • CNC Lathes & Turning Centers

  • Gantry Milling Machines

  • Dedicated Deep-Hole Drilling Machines

• Target Workpiece Materials:

  • Carbon Steel, Alloy Steel, Stainless Steel (300/400 series)

  • Die & Mold Steel (P20, H13, 718)

  • Cast Iron & Ductile Iron

  • Aluminum Alloys & Non-Ferrous Metals

• Primary Industries:

  • Automotive Parts Manufacturing (Engine blocks, transmission shafts)

  • Mold & Die Industry (Cooling lines, ejector pin holes)

  • Hydraulics & Pneumatics (Valve bodies, manifolds, cylinders)

  • Heavy Machinery, Energy & Oil Equipment