Kool Stop Shimano (K-type 2-piston) Pads Sintered Model-Helm MKI Tool Interface: 5mm and 6mm

Tool Interface:  5mm and 6mm hex key

7mm top cover = 8mm total stack

See this explanation for details

By shifting the bottle slightly off center and tilting it outward

water-repellent synthetic outer layer

Kool Stop Shimano (K-type 2-piston) Pads Sintered Model-Helm MKI Tool Interface: 5mm and 6mmHigh performance disc pads from the most trusted name in aftermarket brake pads Organic: blend of organic materials with a top quantity resin provides excellent performance throughout the life of the pad. Organic pads have steel back plates in red Sintered: metallic compound provides performance in extreme conditions for ultimate stopping power, durability, and pad life. Sintered pads have copper plated back plates E Bike pads have a ceramic back with