Accupro 12630101403 Boring Head 4 in Manual Threaded

Product Description

The ACCUPRO 12630101403 is a manually actuated offset boring head designed for precision boring operations on milling machines and machining centers. With a 4-inch body diameter and a 1-inch boring bar hole diameter, this head accommodates standard boring bars for a wide range of bore sizes. The threaded mount style uses a 1-1/2-18 thread interface for secure spindle attachment. At 3-1/2 inches overall length and 4.5 pounds, it delivers the mass and rigidity needed for stable, chatter-free cuts. Machinists and toolroom professionals use this type of head for finish boring, line boring, and back boring on ferrous and non-ferrous materials.

This boring head is suited for job shop, toolroom, and production environments where manual fine-feed adjustment is required. The offset head design allows the operator to dial in the boring radius precisely by shifting the boring bar radially within the body. Compatible with any spindle or arbor that accepts a 1-1/2-18 threaded connection, it integrates into standard vertical or horizontal milling setups. The 1-inch bar hole accepts commonly available boring bar shanks for flexible tooling selection across a variety of bore diameters.

Key Features

• Offset head type allows radial adjustment of the boring bar for precise diameter control
• Manual actuation for direct operator control during setup and fine adjustment
• 4-inch body diameter provides a stable platform and wide adjustment range
• 1-inch boring bar hole accepts standard boring bar shanks
• 1-1/2-18 threaded mount for secure, repeatable spindle connection
• Compact 3-1/2-inch overall length reduces spindle-to-work distance

Compatibility

Designed for use with spindles and arbors equipped with a 1-1/2-18 threaded interface and accepts boring bars with a 1-inch shank diameter.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine powered down and the spindle fully stopped. Verify the threaded spindle interface is clean and undamaged before mounting to ensure proper seating and runout control. Use appropriate torque and anti-seize practices per shop standards when threading the head onto the arbor. Confirm boring bar set-screw engagement and head adjustment lock engagement before starting the cut.