Ƙarfe kusurwa

Ƙarfe kusurwa su ne mafi asali nau'i na nadi-kafa karfe. Ana yin su ta hanyar lanƙwasa kwana ɗaya a cikin wani yanki na karfe.
Ƙarfe na kusurwa mai siffar 'L' ne, nau'in nau'in Ƙarfe na yau da kullun yana kan kusurwar digiri 90. Ƙafafun "L" na iya zama daidai ko rashin daidaituwa a tsayi. Ana amfani da kusurwar ƙarfe don dalilai daban-daban a cikin masana'antu da yawa. Ƙirƙirar ƙira ɗaya ne daga cikin abubuwan da aka fi amfani da ita don kusurwar ƙarfe, amma kuma ana amfani da ita don braket, datsa, ƙarfafawa, da sauran fa'idodi masu yawa.

Girman ƙima (mm)			Mass/tsawon raka'a
A×B×t	r1	r2
75×50×6	8	4	5.699
75x50x8	8	4	7.431
100×75×7	10	5	9.32
100×75×8	10	5	10.6
100×75×10	10	7	13
125×75×7	10	5	10.7
125×75×8	10	5	12.2
125×75×10	10	7	14.9
125x80x7	11	5.5	11.066
125x80x8	11	5.5	12.551
125x80x10	11	5.5	15.474
150×90×9	12	6	16.4
150×90×10	12	8.5	18.2
150×90×12	12	8.5	21.5
Lura: Tsawon da ake samu shine 6m-20m, kuma maki shine A, B, D, AH32, AH36, DH32 da DH36, da fatan za a tuntuɓe mu don wasu buƙatu.