Check the listing for details. 246PCS SAE Metric Grease Nipple Zerk Fittings Kit 1/4 1/8 M6 M8 M10 Assortment. Condition: New. Listed at 27.99 USD. M6 × 45°: 10Pcs; M6 × 90°: 10Pcs; M6 × Straight: 20Pcs; M8 × 45°: 10Pcs; M8 × 90°: 10Pcs; M8 × Straight: 20Pcs; M10 × 45°: 10Pcs; M10 × 90°: 10Pcs; M10 × Straight: 20Pcs. Allows you to simply insert lubricant directly into the bearing without having to disassemble or replace the bearing; For restoration and replacing missing or broken grease zerks on your machinery.M6 × 45°: 10Pcs; M6 × 90°: 10Pcs; M6 × Straight: 20Pcs; M8 × 45°: 10Pcs; M8 × 90°: 10Pcs; M8 × Straight: 20Pcs; M10 × 45°: 10Pcs; M10 × 90°: 10Pcs; M10 × Straight: 20Pcs. Allows you to simply insert lubricant directly into the bearing without having to disassemble or replace the bearing; For restoration and replacing missing or broken grease zerks on your machinery.