Accupro 12630101393 Boring Head 2 in Manual Threaded

Product Description

The ACCUPRO 12630101393 is a manual offset boring head designed for precision single-point boring operations on milling machines and machining centers. With a 2-inch body diameter and a 1/2-inch boring bar hole diameter, it accepts standard boring bars for enlarging, finishing, or truing bored holes to close tolerances. The threaded mount uses a 7/8-20 thread interface for secure attachment to the spindle or arbor. Overall length is 2-7/16 inches. At 1.5 pounds, the head is compact enough for light-duty manual setup work. Installation and adjustment are performed manually, without hydraulic or digital actuation, making it straightforward for machinists who prefer direct mechanical control.

This boring head is suited for use in job shops, toolrooms, and production machining environments where manual boring head setups are standard practice. It is appropriate for interpolating bores in ferrous and non-ferrous workpieces on knee mills, bed mills, and compatible machining centers. The offset head design allows the boring bar to be positioned off-center from the spindle axis, enabling fine diameter adjustments without changing tooling. Machinists performing repair work, custom bores, or prototype machining will find this head appropriate for a wide range of hole-finishing tasks.

Key Features

• Offset head type allows radial adjustment of the boring bar for precise diameter control
• Manual actuation for direct, tool-based adjustment without external power
• 2-inch body diameter provides a stable platform for boring bar support
• 1/2-inch boring bar hole diameter accepts common boring bar shanks
• 7/8-20 threaded mount for secure spindle or arbor connection
• Compact 2-7/16 inch overall length minimizes spindle projection

Compatibility

Designed as an OEM-style offset boring head compatible with spindle arbors or adapters featuring a 7/8-20 threaded interface; consult your machine tool documentation to confirm spindle compatibility before installation.

Installation Notes

Installation should be performed by a qualified machinist with the machine spindle fully stopped and the machine powered down before mounting or removing the boring head. Confirm that the threaded arbor interface is clean and free of chips or damage before threading on the head. Use appropriate torque and tooling to seat the head securely without over-stressing the threaded mount. Boring bar set screws should be tightened with the recommended hex key before any cutting operation is initiated.