Techniks Inc. SYIC-22921 CAT40XSLN3 Tool Holder

The Techniks Inc. SYIC-22921 CAT40XSLN3 Side Lock End Mill Holder delivers rigid, high-concentricity clamping for 3/4-inch shank end mills on CAT40 CNC machines. Bore diameter is 3/4 in (19.05 mm) with a 3.00 in (76.2 mm) projection, body and nose diameters of 1.75 in, an overall diameter of 2.50 in, and a weight of about 3.6 lb (1.63 kg). Bore tolerance is H5 precision-ground, taper accuracy AT3 precision-ground, maximum runout 0.0002 in, balance G6.3 at 15,000 RPM, and the holder is made from hardened 8620 steel with Through-Spindle coolant compatibility (model dependent); it uses Single Contact. Commonly installed in CAT40 vertical and horizontal machining centers for replacement, retrofit, precision machining, and preventive maintenance in aerospace, automotive, mold and die, and other precision metalworking environments requiring accurate end mill retention.