Jump Ring Maker Jewelry Coil Wire Rotary Saw Mandrel Jeweler Tool 2.5mm-12mm Jump ring maker Precision machined cutting box, hand-piece holder, mandrels ,mandrel base, and more 20 Mandrels (2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12)mm Stainless steel blade arbor Wood base INCLUDED; Wood base dimension: 10-1/2''L x 14-1/2''W x 3/4''H Quantity: 1 ; Shipping Weight: 10 pounds