🔧 100mm ADJUSTABLE BORING HEAD WITH R8 ARBOR – PRECISION MILLING BORING HEAD | 1-1/2" × 18 TPI | 0.01mm FINE FEED

The BLUEFOX TOOLS 100mm Adjustable Boring Head with R8 Arbor is a precision-engineered milling machine boring head designed for accurate boring, hole enlargement, and internal diameter machining operations.

Manufactured from high-quality solid steel, this robust boring head provides excellent rigidity, durability, and stability for demanding metalworking and machining applications. The 100mm diameter boring head is designed for use with interchangeable shanks and standard boring bars, providing flexibility for different milling machine setups.

Featuring a 1-1/2" × 18 TPI front mounting thread, this adjustable boring head can accommodate compatible interchangeable shanks. The included R8 arbor provides a convenient mounting solution for milling machines equipped with an R8 spindle.

🎯 The integrated manual precision adjustment spindle allows controlled movement of the boring slide, with a fine feed accuracy of 0.01mm. This makes the tool suitable for precise hole enlargement and controlled internal diameter machining.

🔩 The boring slide incorporates locating holes for standard boring bars, helping provide secure tool positioning during machining operations. The adjustable design allows machinists to make controlled boring adjustments rather than relying on fixed-diameter tooling.

Ideal for milling machines, tool rooms, engineering workshops, machine shops, model engineering, maintenance work, precision machining, hole enlargement, and internal boring applications.

✨ Key Features

✅ 100mm Boring Head Diameter – Large adjustable boring head suitable for a variety of internal machining operations.

✅ Solid Steel Construction – Manufactured from high-quality steel for strength, rigidity, and long-term workshop use.

✅ 0.01mm Fine Feed Accuracy – Manual adjustment spindle allows precise control of boring slide movement.

✅ 1-1/2" × 18 TPI Front Thread – Designed for compatible interchangeable shanks and tooling configurations.

✅ R8 Arbor Included – Supplied with an R8 arbor for convenient mounting on compatible R8 spindle milling machines.

✅ Adjustable Boring Slide – Allows controlled adjustment for enlarging existing holes and machining internal diameters.

✅ Standard Boring Bar Compatibility – Locating holes in the boring slide allow suitable standard boring bars to be securely mounted.

✅ 7/16" UNF Drawbar Thread – Arbor is threaded for a 7/16" UNF drawbar.

✅ Manual Precision Adjustment – Provides controlled boring diameter adjustment for machining applications.

📏 Specifications

• 🔹 Brand: BLUEFOX TOOLS
• 🔹 Product Type: Adjustable Boring Head
• 🔹 Boring Head Diameter: 100mm
• 🔹 Construction: Solid Steel
• 🔹 Adjustment: Manual Precision Adjustment Spindle
• 🔹 Fine Feed Accuracy: 0.01mm
• 🔹 Front Thread: 1-1/2" × 18 TPI
• 🔹 Arbor Type: R8 Arbor
• 🔹 Drawbar Thread: 7/16" UNF
• 🔹 Boring Bar: Suitable for Standard Boring Bars
• 🔹 Application: Milling, Boring, Drilling & Internal Diameter Machining

🛠️ Applications

🎯 Precision Boring – Controlled internal machining of existing holes.

⚙️ Hole Enlargement – Accurately increase the diameter of pre-drilled holes.

🔩 Internal Diameter Machining – Suitable for machining and adjusting internal diameters.

🏭 Milling Machine Operations – Designed for compatible milling machines with R8 spindle systems.

🔧 Machine Shop Work – Useful for general engineering and metalworking applications.

🛠️ Tool Room Machining – Suitable for controlled boring and setup work.

📐 Precision Engineering – Fine 0.01mm adjustment supports detailed machining operations.

🚗 Component Machining – Suitable for various metal components requiring internal machining.

🔩 R8 Milling Machine Compatibility

The included R8 arbor allows the 100mm adjustable boring head to be mounted on compatible milling machines using an R8 spindle.

The arbor is threaded for a 7/16" UNF drawbar, while the boring head features a 1-1/2" × 18 TPI front thread for compatible tooling and shank configurations.

⚠️ Please verify your milling machine spindle, drawbar, thread, and tooling compatibility before purchase.

🎯 Precision Adjustment

The integrated manual adjustment spindle provides a 0.01mm fine feed accuracy, allowing the boring slide to be adjusted in controlled increments.

This makes the boring head useful when machining applications require more controlled diameter adjustment than a fixed-size boring tool can provide.

📦 Scope of Delivery

📦 1 × 100mm Adjustable Boring / Drilling Head

🔩 1 × R8 Arbor

🔧 1 × 3.0mm Allen Key

🌟 Why Choose BLUEFOX TOOLS?

✔ 100mm Adjustable Boring Head
✔ Solid Steel Construction
✔ 0.01mm Fine Feed Accuracy
✔ 1-1/2" × 18 TPI Front Thread
✔ R8 Arbor Included
✔ 7/16" UNF Drawbar Thread
✔ Compatible with Standard Boring Bars
✔ Suitable for Milling & Internal Boring
✔ Ideal for Hole Enlargement & Internal Diameter Machining
✔ Designed for Machine Shops & Engineering Workshops