KEYMAN Best 70mm Double Euro Cylinder with Thumb Turn | EN 1303 Security

The KEYMAN 70mm high-security cylinder combines the rigorous protection of the EN 1303 standard with the everyday convenience of a thumb turn. Designed for optimal security and ease of use, it features a keyed exterior and a thumb-operated interior, making it an ideal choice for residential and commercial doors where quick exit is desired without compromising on defense against forced entry.

Crafted from solid brass, it ensures durability and corrosion resistance. Its core security features include advanced anti-snap, anti-pick, and anti-drill mechanisms. The 70mm size (typically 35mm/35mm) is one of the most common lengths, offering broad compatibility with Wooden door, Metal door, Interior door, outer door, swing door.

Key Features & Benefits

EN 1303 Certified Security: Independently tested for durability (up to 100,000 cycles), corrosion resistance, and resistance to snapping, picking, and drilling.

Convenient & Safe Thumb turn: Allows for quick, keyless locking and unlocking from the inside, facilitating easy exit in normal situations or emergencies.

Advanced Protective Design: Incorporates sacrificial break points to frustrate snapping attacks and security pins to resist picking and bumping.

Versatile 70mm Fit: The symmetrical 70mm length is designed to fit a vast range of standard European-style doors flush with the escutcheon, preventing leverage attacks.

Specifications

Frequently Asked Questions (FAQ)

Q1: Why choose a thumbturn cylinder over a double-keyed cylinder?

A1: A thumbturn cylinder provides much greater convenience and safety for daily use and emergencies, as you can exit quickly without fumbling for a key. It is the recommended and often legally required choice for doors where a quick escape is necessary (like main exits), provided the door is not fully glazed or has glass panels immediately next to the lock. A double-keyed cylinder (key both sides) is used only when there is a risk of someone breaking glass near the lock to reach the inside mechanism.

Q2: How do I know if 70mm is the correct size for my door?

A2: The 70mm measurement is the total length of the cylinder barrel. To check, remove your current cylinder and measure it from end to end. Also, measure from the door edge to the centre of the handle spindle on both sides. For a symmetrical 70mm cylinder, both these measurements should be approximately 35mm. Always measure your old cylinder or door before purchasing.

Q3: Is the thumbturn side secure from lock picking?

A3: The thumbturn mechanism is on the interior side and does not have a keyway, so it is not vulnerable to picking from the outside. The external keyway incorporates all the high-security features (anti-pick pins, etc.) to protect against external manipulation attempts.

Q4: Can I get this cylinder in a Master Key system?

A4: Yes, most suppliers offer this cylinder type as part of a Master Key or Keyed Alike system. This allows you to have one key that operates multiple different locks (Master Key system) or to have all your locks set to the same key (Keyed Alike) for convenience.