Maple Tree Tapping &ndash; Black Plastic Maple Tapping Spiles &ndash; Set of 10 - 5/16&rdquo; Maple Tap Spiles 10 food grade quality reusable 5/16 plastic black spiles, Maple Sap Taps. A quality product made for Maple tapping and sugaring. Maple taps. Replenish or add to your current Maple tapping supplies, or for the novice Maple tapper to get you started. The 5/16 tree saver spile means less damage to the tree and faster tap hole healing, which is beneficial to production in the long term.