# KAIWEETS ES21: A Precision Screwdriver Set with a Place for the Small Parts > Opening the bit case, fitting a bit and trying the motor and light controls. Canonical page: https://pyrosoft.pro/blog/unboxing-the-kaiweets-70-in-1-mini-electric-screwdriver-25a5495b Published: 2026-11-04 Some links to other products on this page are affiliate links, and we may earn a commission if you buy through them. It costs you nothing extra, and it has not changed what this article says — where a competitor is the better answer, we say so. There are a lot of tiny pieces in a precision screwdriver kit. The first thing I appreciate about this KAIWEETS ES21 package is that it gives those pieces somewhere to live. I open the box and find the bit case, a charging cable, a magnetizer/demagnetizer and a magnetic work mat. That mat is the sort of accessory I like having beside a project with very small screws. ## Open the case and choose a bit The case opens to rows of different bits, including longer versions and security patterns. I also take out the tweezers before fitting a bit into the screwdriver itself. The driver powers on. I try its direction controls and light, then talk through the mode and gear controls. That demonstrates the controls working, without measuring torque or completing an electronics repair. ## A kit for the small jobs KAIWEETS sent this over. I am interested in keeping the driver, bits and small-part tools together, especially for the sort of device work that is awkward with a full-size screwdriver. For a different part of the project bench, my [LIFEGOO glue-gun first look]() is about the magnetic stand and a past cosplay project. These are separate tool sessions, not a repair completed with both products. ## The original offer has expired The October 2024 description lists P5PPWTKS for 10% off and a separate 30% product-page coupon, with an expiry of October 20, 2024. I am preserving that historical offer, not presenting either discount or their combination as available now. The original product link is below. The original outro credit lists `http://eme7.com/`. ## Links from the video **Affiliate disclosure:** These links may earn me a commission at no extra cost to you. - [KAIWEETS ES21 original Amazon link]() **Coupon code: P5PPWTKS** — 10% off; separate 30% on-page coupon also listed. Expired historical offer. The original description advertised a combined saving; do not assume current availability or stacking. Links and offers are from the video description. Availability, prices and offer terms may change.