Snap-on® 套筒採用 Flank Drive® 系統,貼合螺帽/螺栓平面施力,提供 15–25% 更強的扭轉施力
表面採鎳鉻合金處理,可抗鏽防蝕
採用高品質國產鋼材製造,具備最佳強度與耐用性
12 角規格搭配 Flank Drive® 咬合系統設計
符合 AS954 航太標準

| Dimension C, Bolt Clearance Depth, inches | 7/16 |
| Size, inches | 1/2 |
| Country of Origin | USA |
| Dimension A, Hex End Diameter, inches | 23/32 |
| Finish | Chrome |
| Dimension D, Length, inches | 31/32 |
| Dimension E, Hex Depth, inches | 5/16 |
| Style | 12-Point |
| Dimension B, Drive End Diameter, inches | 11/16 |