Olofly (US): Wulf Mods 65mm 4 Piece Grinder Selling at Only $23.99 The Wulf Mods Grinder is an excellent grinder that helps to produce outstanding sessions while also reducing the amount of time spent on preparation. The Wulf Mods Grinder is the perfect accessory for any event, so make sure you get your hands on one by purchasing from our online headshop as soon as possible.