Stainless Steel Taps - Sap Meister Maple Sap Spiles for Bag or Bucket (25 Pack), 5/16" for Making Maple Syrup High quality stainless steel construction. Durable and reusable year after year. Use a 5/16" drill hole in your tree and tap until snug. 11/16" diameter washer designed to work with Bag Holders and Buckets. This spout also fits our PVC EZ Sap Sack Holder. Can be sterilized by boiling in water