tender for l type allen key set consisting 09 key size 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm,8 mm, 10 mm, as per is 4595-1969 latest. length of allen key min. size 66 mm max. 200 mm appr. hardness30-40 hrc, tensile strength 1250+/- 5 n/mm square. make taparia, facom, irwin, hoyoma or equivalent .
