Small Format Interchangeable Core INTERCHANGEABLE CYLINDER in apartments master key（R8）

Description: Small Format Interchangeable Core (SFIC)
- Brass Housing HPB59-1
- Best A,C,F,G Keyway available
- 1,000,000 key combinations of 6 pins cylinder
- 10,000,000 key combination of 7 pins cylinder
- With nickel silver 1 control key and 2 operating keys
- No screwdriver and tool needed for cylinder replacement
- Finish: US03, US04, US10B, US15, US26, US26D, US32, US32D
- Inpinned / KA / KD / MK / GMK / GGMK / GGGMK / GGGGMK system for optional order
- Core for Rim Lock, Mortise Lock, File Cabinet Lock, Drawer Lock

It can be master key.

It is popular in apartments.

Huge bitting combinations.