#7 Universal Parting Blade Holder: Only for use with the Aloris Wedge Grip Carbide Insert blades, T-type blades or with bevel (wedge-shape) blades having parallel top and bottom edges. Enables you to cut-off close to chuck. Absence of vibration prevents breaking blades.
#7R Universal Parting Blade Tool Holder-Reversible: Has the same features of the #7 with the advantage of rear cut-off use.