Stainless Steel Maple Taps, Sap Spiles, 25-PACK Lifetime Spouts for Tubing High quality 304SS construction. Durable and reusable for year after year. Use a 5/16" drill bit to drill a hole into your tree and simply tap into place. Made in the USA and made to last a lifetime with proper care. Can be sterilized by boiling in water each season to improve yield. All 5/16" maple tubing will fit snugly over the barbed end of these taps.