Complete Blacksmithing Tool Making: From Bar Stock to Working Edge
Making your own tools is the ultimate self-sufficiency skill. This campaign covers forging essential hand tools, heat treatment, handle fitting, and tool steel selection.
Chapter 1: Tool Steel Selection
Steel Type
Carbon Content
Hardness
Toughness
Best For
Source
Mild steel (1018)
0.18%
Low
Excellent
Tongs, hooks, non-cutting tools
Hardware store
Medium carbon (1045)
0.45%
Moderate
Very good
Hammers, punches, chisels
Specialty supplier
High carbon (1075)
0.75%
Good
Good
Knives, axes, general edge tools
Specialty supplier
High carbon (1095)
0.95%
Very good
Moderate
Knives, springs, fine edge tools
Specialty supplier
W1 tool steel
0.95-1.10%
Excellent
Moderate
Chisels, punches, cutting tools
Specialty supplier
Old files
~1.0%
Very good
Moderate
Knives, chisels, scrapers
Salvage
Leaf springs
0.50-0.60% (5160)
Good
Excellent
Knives, axes, large tools
Salvage (auto)
Railroad spikes
0.30% (HC marked)
Low-moderate
Excellent
Decorative, light-duty tools
Salvage (railroad)
Coil springs
0.50-0.60% (5160)
Good
Excellent
Knives, tongs, tools
Salvage (auto)
Chapter 2: Essential Tool Projects
Tool
Steel
Starting Stock
Difficulty
Time
Skills
Cold chisel
W1 or old file
3/4 inch round, 8 inches
Low
30-60 min
Drawing, heat treat
Center punch
W1 or old file
1/2 inch round, 6 inches
Low
20-30 min
Tapering, heat treat
Flat-nose tongs
Mild steel
1/2 inch round, 18 inches x2
Moderate
2-3 hours
Drawing, bending, riveting
Cross-peen hammer
1045
1.5 inch round, 4 inches
Moderate-high
3-5 hours
Punching, drifting, heat treat
Hatchet
1075 or 5160
Flat bar 1.5x0.5 inch, 8 inches
Moderate
2-4 hours
Drawing, punching, welding, heat treat
Drawknife
1075 or old file
Flat bar 1.5x0.25 inch, 14 inches
Moderate
2-3 hours
Drawing, bending, heat treat
Wood chisel
W1 or old file
3/4 inch square, 8 inches
Moderate
1-2 hours
Drawing, heat treat, handle
Screwdriver
Mild steel
3/8 inch round, 10 inches
Low
20-30 min
Drawing, flattening
Chapter 3: Heat Treatment
Process
Temperature
Cooling
Purpose
Result
Normalizing
Cherry red (1,500°F)
Air cool
Relieve stress, refine grain
Soft, uniform structure
Annealing
Cherry red (1,500°F)
Very slow cool (in ash)
Maximum softness
Easy to file and machine
Hardening
Cherry to orange (1,475°F)
Quench in oil or water
Maximum hardness
Hard but brittle
Tempering
375-600°F (by color)
Air cool
Reduce brittleness
Tough and hard
Tempering colors (oxide colors on polished steel): 1) 375°F: light straw (files, razors, engraving tools). 2) 425°F: dark straw (drills, taps, punches). 3) 475°F: brown/bronze (axes, wood chisels, plane blades). 4) 500°F: purple (cold chisels, springs, knives). 5) 540°F: dark blue (screwdrivers, springs). 6) 575°F: light blue (soft springs). 7) Method: harden first (quench from cherry red). 8) Polish a section bright (remove scale to see colors). 9) Heat slowly (torch or oven) and watch for color. 10) When desired color appears, quench immediately. 11) Result: tool is hard enough to hold an edge but tough enough not to shatter.
Chapter 4: Handle Making
Handle Material
Strength
Shock Absorption
Durability
Availability
Hickory
Excellent
Excellent
Very good
Eastern N. America
Ash
Very good
Very good
Good
Widespread
Oak
Good
Moderate
Very good
Widespread
Maple
Good
Moderate
Good
Widespread
Birch
Moderate
Good
Moderate
Northern regions
Handle fitting: 1) Shape handle to fit tool eye or tang. 2) For eye tools (hammers, axes): handle tapers to fit through eye. 3) Drive handle through eye from bottom. 4) Handle protrudes slightly above eye. 5) Drive steel or wooden wedge into top of handle (expands handle in eye). 6) Cross-wedge for extra security (two wedges at 90 degrees). 7) For tang tools (chisels, files): drill hole in handle for tang. 8) Heat tang and burn it into handle (creates perfect fit). 9) Epoxy or pin tang in handle for permanent attachment. 10) Ferrule: metal ring at top of handle prevents splitting.
Chapter 5: Sharpening and Maintenance
Sharpening Method
Grit Equivalent
Use
Speed
Result
File (mill bastard)
40-60 grit
Heavy shaping, repair
Fast
Rough edge
Coarse stone (India)
100-200 grit
Initial sharpening
Moderate
Working edge
Medium stone (Arkansas)
400-600 grit
Refining edge
Moderate
Good edge
Fine stone (hard Arkansas)
800-1,200 grit
Final sharpening
Slow
Very sharp
Strop (leather + compound)
3,000-10,000 grit
Polishing edge
Very slow
Razor sharp
Reference Card
Old files make excellent tools (files are high-carbon steel already hardened; anneal them first, forge to shape, then re-harden and temper). 2. Leaf springs are versatile (automotive leaf springs are 5160 steel; tough and hard enough for knives, axes, and heavy-duty tools). 3. Normalize before hardening (normalizing refines the grain structure; always normalize at least once before the final hardening quench). 4. Temper immediately after hardening (hardened steel is brittle and can crack spontaneously; temper within minutes of quenching). 5. Tempering color tells hardness (straw for cutting tools, purple for impact tools, blue for springs; learn the oxide color scale). 6. Hickory is the best handle wood (nothing absorbs shock like hickory; it is the standard for hammers, axes, and striking tools). 7. A sharp tool is a safe tool (dull tools require more force, slip more often, and cause more injuries than sharp tools). 8. Make your tongs first (without tongs, you cannot safely hold hot metal; tongs are the first tool every blacksmith should forge).
