1. PACKAGE INCLUDES : You will receive 1pc SRDCN 1212H06 1/2”/12mm shank diameter round carbide metal lathe tools insert holder , 11pcs RCMT060204 MO R3 round carbide inserts and 1pc T8 wrench. 2. SRDCN 1212H06 1/2” Metal Lathe Tool : 7.SRDCN 1212H06 1/2” lathe turning tools Shank Diameter ( length×width ) : 1/2" * 1/2"(12mm*12mm) ; Overall Length : 100 mm ≈ 3.93" . The SRDCN 1212H06 round carbide metal lathe tools insert holder material is 40Cr steel, it has the characteristics of durability, sturdiness and stability, and good anti-rust performance. 3. RCMT060204 MO round carbide insert : Insert Style : RCMT , thickness: 0.094" ≈ 2.38 mm , diameter : 0.236” ≈ 6mm, clearance angle=7° .The RCMT060204 MO R3 round insert material is carbide, and the coating is CVD Al2O3 TICN, the RCMT 060204 carbide milling insert can be used for processing cast iron, steel parts and stainless steel. The RCMT060204 carbide lathe insert has excellent comprehensive properties such as high hardness, high wear resistance, high stability, and smooth chip breaking. 4. Easy to store : the SRDCN 1212H06 1/2” metal lathe milling tool insert holder and RCMT060204 MO round carbide lathe milling inserts cutter are packed in plastic container, safe and easy to store, please rest assured to buy! 5. Note : For your safety, please wear safety glasses when using lathe tool milling tools to avoid flying debris and keep the working environment ventilated to reduce dust pollution. milling turning inserts