Most homes need about a dozen tools. Not fifty. Not five. The right twelve handle most small repairs. The rest can wait until the job comes up.
starter kit
A small set of well-chosen tools that covers most home repairs.
Your guess
A $10 hammer and a $30 hammer hang side by side. Over ten years, which one usually costs less?
Sources
NIOSH and OSHA — hand-tool safety guidance
InterNACHI (International Association of Certified Home Inspectors) — 15 Tools Every Homeowner Should Own
Family Handyman — DIY tool guides
This Old House and Popular Mechanics — homeowner tool guides
Wirecutter (New York Times) — independent tool testing
OSHA 3080, Hand and Power Tools — https://www.osha.gov/sites/default/files/publications/osha3080.pdf — replaces the fabricated NIOSH quotation on screen 16 as the actual agency source for cut-away-from-the-body and general hand-tool safety.
OSHA eTool, Kitchen Equipment (cutting) — https://www.osha.gov/etools/hospitals/food-services/kitchen-equipment — agency wording for directing the cut away from the body and keeping blades sharp.
International Residential Code R602.3, Wall Construction — https://www.jaspector.com/codes/irc-2024/ch06-wall-construction/stud-spacing-wall-framing-irc-2024/ — primary basis for the 16 in. / 24 in. on-center stud spacing on screen 25.
UCSB Physics Lecture Demonstrations 28.12, Wrenches and Screwdrivers — https://web.physics.ucsb.edu/~lecturedemonstrations/Composer/Pages/28.12.html — torque equals force times perpendicular distance from the rotation axis; the basis for the corrected screwdriver-handle explanation on screen 6.
Hex key (arm selection: short arm in fastener for torque, long arm in fastener for reach and speed) — https://en.wikipedia.org/wiki/Hex_key — basis for correcting the swapped before_after on screen 30.
Allen (brand) — William G. Allen, Hartford CT, US Patent 960,244 (1910) — https://en.wikipedia.org/wiki/Allen_(brand) — primary provenance for the 'Allen' name origin on screen 29.
Crescent Tool Company / Karl Peterson, Jamestown NY, 1907 — https://www.newyorkalmanack.com/2026/06/karl-peterson-crescent-wrench-king/ — provenance for the crescent-wrench name on screen 14.
Pro Tool Reviews, 20V Max vs 18V Batteries — https://www.protoolreviews.com/20v-max-vs-18v-battery-power/ — independent trade testing establishing that 18V nominal and 20V MAX are the same five-cell pack (screen 20).
REVIEW THE EXISTING LIST: Family Handyman, This Old House, Popular Mechanics and Wirecutter are affiliate-funded consumer media, not primary sources. They are reasonable for what-to-buy opinion but should not be the citation behind any physics, safety, code or history claim in this module — all four currently sit in source_references with nothing else backing those claims. Wirecutter's guide is also mis-titled in the on-screen attribution ('The Best Basic Tool Kit' should be 'The Best Basic Home Tool Kit').
Read end to end and corrected: August 9, 2026. Numbers checked: August 9, 2026.