Could someone help me find the right size Allen key for m2 screws

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Could someone help me find the right size Allen key for m2 screws? : r/3Dprinting

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Size: M2, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24 Allen Key Set, Stainless Steel at Rs 15/piece in Bengaluru

Overview – PB Swiss Tools

M2 Countersunk Socket Allen Bolt , [3mm- 20mm : Please Select Length And Quantity] , A2/70 Stainless Steel- DIN 7991 Dimensions of screws : Head Type

10pcs 2mm M2 A2 STAINLESS COUNTERSUNK CSK SOCKET SCREW ALLEN KEY BOLTS SCREWS DIN 7991

PRIFO 20pcs M2 M2.5 Cap Head Allen Key Bolts Hex Socket Screws A2 Stainless Steel Fastener (Color : 16 mm, Size : M 2): Buy Online at Best Price in UAE

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M2.5 X 6MM Socket Head Cap (Allen) Screws (Pack of 10 Screws)

I figured out what the left piece is for but can someone help with the right one? Came in a bag for my shimano 105 di2 groupset : r/bikewrench