ISCAR SGTBN 19-5 Indexable Cut-Off Blade Tool Holder Block. Our 20,000 Sqft Warehouse in Oxnard, CA is always full of Machine tools & accessories for Lathes, Mills & Grinders. Carbide Inserts made by ISCAR, SANDVIK, KENNAMETAL. Tool Holders, HSS & Carbide End Mills, Taps and more.