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Steel Drawplate with Graded Tapered Holes, and Draw Tongs
A drawplate is a hardened steel plate pierced with a row of tapered holes, each a little smaller than the last. Annealed wire, filed to a point, goes into a hole just smaller than itself and is pulled through with draw tongs, coming out thinner; plates also come with square, half-round or hexagonal holes. Make the plate and the tongs.
The picture: two drawplates with numbered rows of holes.
Advanced
Two days
Instructions
1
1
Forge the plate
Forge the plate
Forge tool steel to a flat plate about 150 × 35 × 8 mm (our size) and anneal it.
Materials for this step:
Flat Tool Steel Bar1 piece
Charcoal2 as requiredTools needed:
Blacksmith Forge
Anvil
Cross Peen Hammer
Blacksmith Tongs
Welding Gloves
Safety Glasses2
2
Drill and taper the holes
Drill and taper the holes
Lay out a row of holes stepping down in size (step 5), drill each, then open it to a taper from the back face with a hot tapered punch, so it is widest at the back and narrowest at the front. True each mouth with a needle file.
Materials for this step:
Charcoal2 as requiredTools needed:
Hand Drill
Blacksmith Forge
Hot Punch
Drift
Needle File Set
Heavy Bench Vice
Welding Gloves
Safety Glasses3
3
Harden and temper
Harden and temper
Grind the faces flat, harden the plate in water and temper it to a straw colour so the holes keep their size.
Materials for this step:
Water10 litersTools needed:
Grindstone
Blacksmith Forge
Quench Bucket
Blacksmith Tongs
Welding Gloves
Safety Glasses4
4
Draw tongs
Draw tongs
Forge two short, stout jaws with long reins from wrought iron, file cross teeth in the jaws to bite the wire, rivet them, and bend the end of one rein into a hook so the grip can be held or hauled.
Materials for this step:
Wrought Iron Bar2 pieces
Iron Rivets1 piece
Charcoal2 as requiredTools needed:
Blacksmith Forge
Anvil
Cross Peen Hammer
Hot Punch
Metal File
Blacksmith Tongs
Welding Gloves
Safety Glasses5
5
Hole sizes
Hole sizes
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Materials
5- 1 piecePlaceholder
- 2 as requiredPlaceholder
- 10 litersPlaceholder
- 2 piecesPlaceholder
- 1 piecePlaceholder
Tools Required
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