Descriptions: This MT3 taper reamer is made of high speed steel, features high hardness, good wear resistance and durability. The blades are specially grinded. Surface gloss, high precision and stable performance. Features: Made of high quality high speed steel, features high hardness, good wear resistance and durability. The blades are specially grinded. Surface gloss, high precision and stable performance. The cutting hole has good surface finish and precision. MT3 taper reamers to ream the morse tapered shape. This MT3 straight shank finishing reamer is a rough reamer. Specifications: Material: high speed steel Specification: MT3 148 x 16 x 20mm/5.83 x 0.63 x 0.79inch Size: as the picture Weight: 305g Package Included: 1 x MT3 Taper Reamer Note: Due to manual measurement, may exist 1-3mm error Package List 1Made of high quality high speed steel, features high hardness, good wear resistance and durability 2The blades are specially grinded. Surface gloss, high precision and stable performance 3The cutting hole has good surface finish and precision 4MT3 taper reamers to ream the morse tapered shape 5This MT3 straight shank finishing reamer is rough reamer