採用高品質美製鋼材製造,並經妥善處理以提供最佳強度與耐用性,表面施以鎳鉻鍍層處理,兼具防鏽與易於清潔的特性
適合搭配 1/4" 棘輪扳手或起子把手使用,用於一字型螺絲的鎖緊與拆卸作業
本體全長 2-29/32 吋,起子桿長度 2-1/32 吋,傳動端外徑 15/32 吋,搭配可替換式一字型起子桿(TMC104E2A)

| Dimension D, Replacement Bit | TMC104E2A |
| Dimension A, Overall Length, inches | 2-29/32 |
| Dimension B, Exposed Bit Length, inches | 2-1/32 |
| Size, inches | 3/16 x .032 |
| Country of Origin | USA |
| Description (Chart) | Standard Length |
| Finish | Chrome |
| Square Drive, inches | 1/4 |
| Dimension C, Drive End O.D., inches | 15/32 |