Can you elaborate on the working tools of an entered apprentice?

An Entered Apprentice receives two working tools: the twenty-four-inch gauge and the common gavel 12.

The twenty-four-inch gauge is a two-foot rule divided into twenty-four equal parts 1. Operatively, stonecutters used it to measure their work 1. Symbolically, it represents the twenty-four hours of the day, teaching the Apprentice to divide his time into three equal parts: eight hours for the service of God and a distressed worthy brother, eight for his customary vocation, and eight for refreshment and sleep 12. It serves as an emblem of time well spent, readiness, and practical discipline applied to daily life 12. Mackey notes that the term "twenty-four-inch gaffe" has sometimes appeared in instruction as a variant tool, distinguished by having the twenty-four divisions marked upon its surface 1.

The common gavel is an operative tool used to knock off the rough edges and corners of unhewn stone, fitting it for the builder's use 2. In speculative Masonry, it symbolizes the moral effort required to divest the heart and conscience of vices and unneeded superfluities, revealing the inherent perfection within the man 2. Beyond its moral instruction for the candidate, the gavel also serves in the lodge as a symbol of personal power and represents the governing authority of the Worshipful Master 2.