Pulling vs. Milling – Technique Comparison
Pulling – The Classic Method
Advantages:
✅ Easy to learn – also suitable for less experienced users
✅ Lower noise and less dust compared to milling
✅ Cordless drill often already available – no special tool needed
✅ After core extraction, the coupling is easier to access – especially helpful with cylinders lacking emergency function when a key is inserted on the inside
✅ More cost-effective to implement
✅ Ideal for basic door systems without security features
Disadvantages:
❌ Core pull protection must be removed first (e.g. with an angle grinder)
❌ Pulling screws can break under pressure – regardless of brand
❌ The screw must be inserted as straight as possible into the core
❌ In multi-point locking systems, pulling may damage the lock mechanism
Milling – Precise and Lock-Friendly
Advantages:
✅ Gentler on the lock case – no mechanical overload
✅ No need to remove core pull protection – milling through the opening (e.g. with 4 mm bit)
✅ No lateral forces on the door
✅ Works even if pulling fails (e.g. broken screw)
✅ Ideal for multi-point locks, high-end hardware, or tight installation spaces
Disadvantages:
❌ Requires a die grinder – extra investment
❌ More demanding PPE: eye protection, hearing protection, possibly dust mask
❌ More dust and debris – cleanup or protection measures needed
❌ Technically more challenging than pulling for some users
Field Tip from Firefighter Practice
In practice, having both tools available has proven most effective.
Because:
✅ Every team member has their own preferred method
✅ Door situations are often only fully understood on site
✅ Pulling is fast – milling is safer
➡️ It's not about "right or wrong", but about flexibility and tactical clarity
Whether both methods are procured depends on the budget – but in practice, combining both has proven the best solution.
