DRINYOUNG H7 Straight Shank Chucking Machine Reamer Milling Cutter Tool,Reamers for Straight Shank Machines Carbide Lathe (4pcs:1/8" 3/16" 1/4" 5/16")

["4-Piece inch reamer set includes 1/8, 3/16, 1/4, 5/16 inch sizes, suitable for common hole finishing tasks","Constructed from high speed steel, offering good wear tolerance and heat tolerance for general use","Straight flute featuring tapered shank design provides stable chucking and smooth debris removal for cleaner hole surfaces","Works with milling machines, drill presses, and hand reaming applications; commonly used in repair, mold making, and precision machining","Note: Pre-drill holes with 0.2–0.4mm allowance before reaming; maintain steady feed rate and avoid excessive pressure"]