Technical Precision for Makers
Look up any size.
Shop the set that includes it.
Size charts and finders for drill bits, fasteners, abrasives, and wire — reference tables for the home workshop, not product reviews.
How this site works
Step 1
Look up the size
Finder, chart, or decide table — get a clear label.
Step 2
Confirm the label
1/4", #21, 80 grit, 12 AWG — the number you actually need.
Step 3
Shop the set
One kit or pack that includes the size you looked up.
Quick tasks
Jump straight into the job — finders and charts first, no long articles.
Find a drill bit size
Fractions, numbers, letters → decimal and mm, then a matching set.
Drill bit for a screw
Pilot and clearance holes for common wood and machine screws.
Full size chart
All four drill systems in one reference table.
Grit for the job
Material and stage → grit range for wood or metal.
Wire gauge / ampacity
AWG sizes and current capacity for shop circuits.
Printable charts
High-contrast references for the shop wall — print-ready flagship charts.
Open →Reference families
Four workshops under one roof — each hub has charts, tools, and FAQs.
Live · chart + finder
Drill Bits
Fractional, metric, number, and letter sizes with finder + kits.
Explore Drill Bits Hub ready
Fasteners
Wood screws, machine screws, pilot holes, and tap drills.
Explore Fasteners
Hub ready
Abrasives
Grit charts and material → grit decisions for finishing.
Explore Abrasives
Hub ready
Wire
AWG sizes, ampacity tables, and common circuit lookups.
Explore WireWorkshop tools
Interactive finders — launch, get a label, then the matching set.
Drill Bit Size Finder
Look up a label, then see a set that includes that size.
Launch tool Grit Picker
Material and stage → grit sequence for wood or metal.
AWG / Ampacity
Gauge and ampacity lookup for common shop wiring questions.
Launch toolCommon questions
Search-shaped questions — jump to a hub or tool.