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Pentel Graph Gear 1000 Mechanical PencilThe Pentel GraphGear 1000 mechanical pencil is a superior drafting pencil for architects, draftsmen, artists and enthusiasts. The 4mm tip design makes it ideal for use with rulers and templates. A unique, dual action retractor advances and retracts the pencil tip to protect lead from breaking. The built in lead hardness indicator allows you to easily identify your lead type. It comes pre loaded with Super Hi Polymer HB lead, which never needs
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 610 reviews
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Product Reviews
★★★★★ 5
Amazing book!
Format: Paperback
I love every chapter. It has raised my abilities in using data science, allowing me to demystify data more thoroughly!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
★★★★★ 5
Awesome Book
Format: Paperback
Very useful book. It was exactly what I was looking for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2025
★★★★★ 5
Just what I was looking for
Format: Paperback
Good
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Reviewed in the United States on September 17, 2025
★★★★★ 4
Figures are wrong in the Kindle version
Format: Kindle
Through Chapter 11 so far and the Figures are frequently very wrong. There seem to be a couple other minor errors, but this desperately needs an update for the Kindle version. Content otherwise seems good so far, so hope this gets fixed.
Update: Just after I entered this, the figures seem to have been updated. Checked 4 and all are fixed, so moved the rating up one and will update when through all chapters.
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Reviewed in the United States on February 22, 2023
★★★★★ 5
The best python data science book.
Format: Paperback
Covers all the essentials very clearly.
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Reviewed in the United States on February 15, 2023
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