6pc ER Collet Chuck Wrench Set J-Shape Crescent Hook Spanner CNC Lathe Tool Kit

Product Description

Professional 6-Piece ER Spanner Set – Precision Engineering for CNC Machining Upgrade your toolkit with this high-performance set of ER Series Spanner Wrenches. Designed specifically for CNC lathe collet nuts and industrial maintenance, these J-shape crescent hook wrenches offer the perfect balance of strength and precision.

Crafted from premium High Carbon Steel and subjected to a specialized heat treatment process, each wrench is engineered for maximum torque and long-lasting durability. The precision-cut crescent design ensures a tight, secure fit on your equipment, preventing slippage and protecting your hardware from damage. Finished with a professional Black Oxide coating, these tools are built to resist rust and perform in demanding workshop environments.

Key Features

• High Carbon Steel Construction: Industrial-grade material with reinforced hardness for heavy-duty use.

• Enhanced Torque & Grip: J-shape moon design provides a perfect fit for maximum leverage and power.

• Heat Treated Durability: Advanced thermal treatment ensures high toughness and prevents deformation.

• Anti-Rust Finish: Blackened surface treatment provides excellent corrosion resistance and a sleek look.

• Versatile CNC Tooling: Ideal for tightening and loosening ER-type collet nuts, tool holders, and chucks.

Item Specifications

• Type: ER Spanner / Crescent Hook Wrench Set

• Number of Pieces: 6-Piece Kit

• Wrench Shape: J-Shape / Hook Head

• Material: Premium High Carbon Steel

• Surface Treatment: Black Oxide (Rust-Resistant)

• Length Range: 150mm – 300mm

• Hardness: High-Strength Industrial Heat Treatment

• Application: CNC Collet Nut, Milling Lathe, Tool Holder, Industrial Repair

• Total Weight: 1100g (1.1kg)

• Package Dimensions: 27.5cm x 10cm x 3.2cm

• Total Volume: 880cm³

Package Includes

• 6 x Professional ER Series Hook Spanner Wrenches (Assorted Sizes)

• 1 x Protective Cardboard Storage Box