UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
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.
Hejuru
Two days
Amabwiriza
1
1
Forge to hex
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.
Ibikoresho by'iyi ntambwe:
Inkoni ifite impande umunani y'icyuma cy'ibikoresho0.3 kg
Amakara3 as requiredIbikoresho bikenewe:
Uruganda rw'umucuzi
Ingoyi
Inyundo ifite umutwe utambitse
Igiti cy'ibyuma gifite imyobo
Ikibumbiro cyo hejuru cyo kuzengurutsa
Amafashi y'umucuzi
Uturindantoki two gukomeza ibyuma
Amadarubindi y'umutekano2
2
Draw the small sizes
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.
Ibikoresho bikenewe:
Urubaho rwo gukurura insinga rw'icyuma
Igifata gikomeye cy'ameza y'akaziAmafashi y'umucuziUruganda rw'umucuzi
Amavuta yo gukurura insinga3
3
Bend and cut
Bend and cut
Bend each rod to 90°, short arm about a third of the long one (our proportion), and saw it to length.
Ibikoresho bikenewe:
Igifata gikomeye cy'ameza y'akaziInyundo ifite umutwe utambitse
Umucumita w'Ibyuma4
4
Harden and temper
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).
Ibikoresho by'iyi ntambwe:
Amazi10 litiroIbikoresho bikenewe:
Uruganda rw'umucuzi
Indobo yo gukonjeshaAmafashi y'umucuziUturindantoki two gukomeza ibyumaAmadarubindi y'umutekano5
5
Square the ends
Square the ends
Grind both ends square and flat, so they sit snugly in the socket. Check each key in a matching socket.
Ibikoresho bikenewe:
Ibuye ryo gutyaza ry'uruziga6
6
Steel for a set
Steel for a set
Gupakira ikaye ya Jupyter…
Ibikoresho
3- Umwanya
- 3 as requiredUmwanya
- 10 litiroUmwanya
Ibikoresho bikenewe
14- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
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