64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation sold2026 ApplicationThe Abrasive Flat Lap sanding

ApplicationThe Abrasive Flat Lap sanding wheel is suitable used for Gem Faceting Machine

nickel plated protect them from getting rust and make it glossy without burr

this set comes with a wooden case

allowing for faster rotational speeds and more efficient cutting

Simply drill a hole and thread into place with the included drive tool

64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation sold2026 ApplicationThe Abrasive Flat Lap sanding64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0. 3um Pore Size Strong Adhesive for Mushroom Cultivation Specifications: Size: 20 mm in diameter Color: white Membrane material: Hydrophobic PTFE Pore size: 0. 3um Package includes: 32 x2 sheets Synthetic filter discs Features: Waterproof ,breathable,high temperture and press resistance,reuseable. 64pcs filter sticker Included ,Great for the for all mushroom growers looking to