1. Materials: 45# steel 2. Quality: 42-45 degree hardness 3. Finish : Antirust Oil on surface 4. Size Details: 32,38,50,54mm 5pcs Holesaw set (32-54MM)Product Information:1. Materials: 45# steel2. Quality: 42-45 degree hardness3. Finish : Antirust Oil on surface4. Size Details: 32,38,50,54mm PAT7126Pcs/Inner15SET Pcs/Carton60 SETS Ctn Size50*35*42CM G.W./N.W.20/19 KGS 5pcs Holesaw set (32-54MM)