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Workshop Reference Charts

Essential reference tables for woodworking, metalworking, and electrical projects. Print them out or bookmark for quick access.

Drill & Fastener Charts

Quick reference for drill bits, taps, and pilot holes.

Reference Chart

Drill Bit Size Chart

Complete drill bit reference with fractional, number, letter, and metric sizes. Includes tap drill charts.

All sizes Printable
Reference Chart

Dust Collector CFM Chart

CFM requirements by machine and duct size, plus how to size a dust collector for your shop.

By machine Sizing guide
Reference Chart

Air Tool CFM Chart

Average CFM at 90 PSI for 25+ air tools, plus the 1.5x compressor sizing rule and size classes.

By tool Sizing rule
Reference Chart

Socket Size Chart

SAE and metric socket sizes by bolt, drive sizes, and 6-point vs 12-point explained.

SAE + Metric By bolt
Reference Chart

Wrench Size Chart

SAE and metric wrench sizes by bolt, with an SAE-to-metric cross-reference.

SAE + Metric Cross-ref
Reference Chart

Hex Key / Allen Wrench Chart

SAE and metric hex key sizes, plus the right key for each socket-head and set screw.

SAE + Metric By screw
Reference Chart

Thread Pitch Chart

UNC, UNF, and metric thread pitch / TPI with major diameters for every common size.

UNC/UNF + Metric
Reference Chart

Extension Cord Size Chart

Pick the right cord gauge by tool amps and length, with common tool amp draws.

By amps + length Voltage drop
Reference Chart

Screw Pilot Hole Chart

Pilot hole sizes for wood screws #2-#14, deck screws, lag bolts. Hardwood vs softwood recommendations.

All screw sizes Printable
Reference Chart

Wood Screw Chart

Complete wood screw reference with gauge sizes, lengths, head types, and material recommendations.

All gauges Printable
Reference Chart

Pocket Hole Screw Chart

Screw length and jig setting for every wood thickness, plus coarse vs fine thread selection.

By thickness Jig settings
Reference Chart

Bolt Torque Chart

Torque specifications for SAE and metric bolts by grade. Includes dry and lubricated values.

SAE & Metric Printable
Reference Chart

Forstner Bit Size Chart

Complete Forstner bit reference with sizes, speeds, and applications. Flat-bottom hole drilling guide for woodworking.

All sizes Searchable
Reference Chart

Drill Speed Chart (RPM)

Recommended drill press RPM by bit size and material (wood, metal, plastic) plus Forstner/spade speeds and the SFM formula.

By material RPM + formula
Reference Chart

Feeds & Speeds Chart (Lathe & Mill)

Machining cutting speeds (SFM) by material, spindle RPM by diameter, and milling chip load, with the RPM and feed-rate formulas.

Turning + milling SFM · RPM · feed

The four machines these calculators keep pointing at

Board feet, cut lists and dust runs all assume a machine on the other end. These are the ones that show up most across the calculators here.

DEWALT DWS780 12 in Sliding Miter Saw DEWALT DWS780 12 in Sliding Miter Saw

Double bevel sliding cut, the saw most shop layouts here are built around

Check price on Amazon →
DEWALT DW734 12-1/2 in Benchtop Planer DEWALT DW734 12-1/2 in Benchtop Planer

Three-knife cutterhead, the cheapest route to dimensioning your own stock

Check price on Amazon →
DEWALT DW618PK Router Kit DEWALT DW618PK Router Kit

Fixed and plunge bases in one kit, which covers table and handheld work

Check price on Amazon →
Central Machinery 2 HP Dust Collector Central Machinery 2 HP Dust Collector

Two horsepower at five micron, sized for a one-person shop rather than a vac

Check price on Amazon →

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Lumber & Wood Charts

Dimensional lumber, plywood thickness, and wood properties.

Tools & Cutting Charts

Reference guides for router bits, saw blades, and cutting tools.

Electrical Charts

Wire gauges, ampacity, and electrical reference.

Metalworking Charts

Welding settings, metal specifications, and fabrication reference.

Related Calculators

Need to calculate specific values? Try these free calculators.