The Wenger Master was a five layer model available with corkscrew or Phillips backtools.

The Serrated Master was a version of this model with a 100% serrated main-blade.

Discontinued.

Layer Tools

• Large blade - locking; 100% serrated or plain-edge
• Nail-file
• Pliers
• Wood-saw
• Scissors
• Cap-lifter with a locking screwdriver - also includes a wire stripper
• Can-opener

Back Layer Tools

• Phillips screwdriver
  - or
• Corkscrew
• Awl
• Keyring - some models have a short keychain added

Scale Tools

• Toothpick
• Tweezers

Scales 

Regular red synthetic scales.

History 

The Master models were older SAKs with regular (or standard/classic) Wenger scales.
The EVO S585 and S52 are later versions with the ergonomic Evolution scales.

Variations 

1. Serrated or plain edged main blade.
2. Phillips or corkscrew back tools.

Physical Specifications

• Length: 85mm

Identifiers

• 1.52.53: Plain-edge blade; corkscrew; keychain
• 1.52.59: Plain-edge blade; corkscrew; keychain; locking blade - Listed as the Security 52

US Model Numbers:

• 16404 - Serrated Master
• 16904 - Plain-edge blade, corkscrew and keychain

Related Models

• Evolution S52/S585 - The later 'Evolution' models; plain-edged main blade
• Tradesman - Classic (regular) scales; removes the saw