R & TR Boring Units

Rigibore’s wide range of boring units for roughing, semi-finishing and fine finishing is amongst the widest in the marketplace. It is directly interchangable with a number of other brands of boring unit such as Microbore, Sandvik, Kennametal, Valenite and Stellram.

Rigibore units offer a number of features and benefits that entail superior rigidity and repeatability of cut.

‘R’ units for roughing and semi-finishing. Minimum bore – 15.87mm / .625″

‘TR’ units for finishing. Minimum bore – 18.57mm / .731″

Download catalogue pages (pdf) 1.84 MB

Download spare & accessories information (pdf) 2.97 MB

Download mounting dimensions (pdf) 3.40 MB

Download operating instructions (pdf) 3.77 MB

Key features & Benefits

Features

Unique design incorporating a precision ground collet

Split collet clamps to ACME type thread for accuracy and strength

Separate graduated dial seated on top face of hole

Rigidity maintained throughout full adjustment of unit

Benefits

No deflection under load on uneven or intermittent cutting

Greater repeatability

Longer Insert Life

Most positive direct adjustment, high degree of rigidity, no dial slip when adjusting

MBTR/SAB Bush Units

Only used for finishing operations, this top adjusting unit is bush mounted, and is designed to fit both new and existing holes in bars or holders.
The common feature of all bush units is that they are constructed of a bush plus a 'TR' unit.

Discover More

MBX Fine Boring Units

Rigibore MBX boring units are precision units for mounting into standard or special boring tools.
These units are pre-tensioned, to eliminate backlash and allow adjustments only to be made from the front of the unit.