5pc Forstner Bit Set is made of high carbon steel, packed in wood case Metric Size: 15mm, 20mm, 25mm, 30mm, 35mm Length: 95mm 5pc Forstner Bit SetMaterial: high carbon steelMetric Size: 15mm, 20mm, 25mm, 30mm, 35mmLength: 95mmPackage: Wood Case 5pc Forstner Bit Set