Which hydraulic brake brands use 7mm and 8mm fittings?

7mm fittings are standard on Shimano hydraulic brakes (used on most entry-to-mid level disc brake bicycles in India). 8mm is common on some SRAM and Magura systems. Having both sizes covers the vast majority of hydraulic disc brake systems available in the Indian market.

Is this the correct wrench for bleeding Shimano disc brakes?

Yes — Shimano hydraulic brake hose fittings (the olive and compression nut assembly) typically use 7mm sizing, making the 7mm flare nut wrench the correct tool for connection/disconnection during bleed procedures.

Birzman

Birzman Flare Nut Wrench 7 and 8

Name: Birzman Flare Nut Wrench 7 and 8
Brand: Birzman
SKU: CMB_WOW_BM22-FW-7-8_Std
Price: 890.00 INR
Availability: InStock
Author: InstaSport Editorial

₹890.00

Description

The Birzman Flare Nut Wrench provides 7mm and 8mm wrench access in a flare nut (crowfoot) profile — the correct tool for tightening and loosening hydraulic brake line fittings on bicycles. Unlike an open-ended spanner, the flare nut design wraps around more of the fitting's hex faces, dramatical