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Hex Key Set: Hexagonal Steel Drawn, Bent and Hardened
Scott Ehardt (Wikimedia Commons) · Public domain
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Forge

14. uMfumfu 2026NO
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Hex Key Set: Hexagonal Steel Drawn, Bent and Hardened

A hex key is a single rod of hard hexagonal steel bent into an L with one long and one short arm; its blunt ends fit a hexagonal screw socket. The hexagonal rod is made by drawing steel through a hexagonal die, then bent and cut to length. Forge and draw tool steel to a set of sizes, bend, cut, harden and temper. The picture: a set of six L-shaped hex keys.
Osezingeni eliphezulu
Two days

Imiyalelo

1

Forge to hex

Draw tool steel down and forge the larger sizes hexagonal in the swage block with the top swage, as for hex bar.

Izinto zokwakha zalesi sinyathelo:

Induku enezinhlangothi eziyisishiyagalombili yensimbi yamathuluziInduku enezinhlangothi eziyisishiyagalombili yensimbi yamathuluzi0.3 kg
AmalahleAmalahle3 as required

Amathuluzi adingekayo:

Iziko lomkhandi wensimbiIziko lomkhandi wensimbi
Insimbi YokukhandelaInsimbi Yokukhandela
Isando esinekhanda elimise okwesikhonkwaneIsando esinekhanda elimise okwesikhonkwane
Ibhulokhi elinezimbobo lokubumbaIbhulokhi elinezimbobo lokubumba
Isikhunta esingaphezulu sokuyindilingaIsikhunta esingaphezulu sokuyindilinga
Udlawu lomkhandi wensimbiUdlawu lomkhandi wensimbi
Amagilavu okushiselaAmagilavu okushisela
Izibuko zokuphephaIzibuko zokuphepha
2

Draw the small sizes

For the small sizes, point the rod and pull it cold through hexagonal holes in the drawplate, one size smaller each time, with lubricant. Anneal it whenever it gets stiff.

Amathuluzi adingekayo:

Ipuleti lokudonsa ucingo lensimbiIpuleti lokudonsa ucingo lensimbi
I-vice esindayo yebhentshiI-vice esindayo yebhentshi
Udlawu lomkhandi wensimbiUdlawu lomkhandi wensimbi
Iziko lomkhandi wensimbiIziko lomkhandi wensimbi
Isithambisi sokudonsa ucingoIsithambisi sokudonsa ucingo
3

Bend and cut

Bend each rod to 90°, short arm about a third of the long one (our proportion), and saw it to length.

Amathuluzi adingekayo:

I-vice esindayo yebhentshiI-vice esindayo yebhentshi
Isando esinekhanda elimise okwesikhonkwaneIsando esinekhanda elimise okwesikhonkwane
Isaha SensimbiIsaha Sensimbi
4

Harden and temper

Heat each key to cherry red and quench in water, polish, then temper to blue so it is hard but springy (our temper).

Izinto zokwakha zalesi sinyathelo:

AmanziAmanzi10 amalitha

Amathuluzi adingekayo:

Iziko lomkhandi wensimbiIziko lomkhandi wensimbi
Ibhakede lokupholisaIbhakede lokupholisa
Udlawu lomkhandi wensimbiUdlawu lomkhandi wensimbi
Amagilavu okushiselaAmagilavu okushisela
Izibuko zokuphephaIzibuko zokuphepha
5

Square the ends

Grind both ends square and flat, so they sit snugly in the socket. Check each key in a matching socket.

Amathuluzi adingekayo:

Itshe lokulola eliphendukaItshe lokulola eliphenduka
6

Steel for a set

Ilayisha incwadi ye-Jupyter…

Izinto

3

Amathuluzi Adingekayo

14

Le blueprint yenza

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Isibambeli

Isethi yezikhiye ze-hex

Free

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Ama-blueprint ahlobene

Lama-blueprint abelana ngolwazi — amasu, izinto noma izimiso

Mild Steel Hex Bar Forged in the Swage Block

Mild Steel Hex Bar Forged in the Swage Block

ngu-ForgeNO

Umkhandi

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