Keyway end mills are manufactured with undersized cutting diameters to produce a tight fit between the keyway slot they cut and the woodruff key or keystock. Keyway Width ( C ) Reference Depth ( D ) fractional decimal fractional decimal 3/8 0.375 0.322 3/32 0.0938 0.053 7/16 0.4375. Keyway definition, a groove in a shaft, the hub of a wheel, etc., for receiving part of a key holding it to another part. Use these end mills for general purpose keyseat cutting in a wide range of material, including aluminum, iron, and steel. They mill precise notches in rotary shafts to fit machine keys and can also be used for slot milling.

Simply put, a keyway is a slot in a lock for receiving and guiding the key. Of course, with each specially designed keyway made to make a lock even more secure, the definition gets more complicated with plenty of options. When making a duplicate key for your lock, it is important to understand what type of keyway you have in order to determine whether or not your duplicate key is able to be cut and to ensure you have the right type.

Shape of Key

The shapes vary, but you can generally figure out what type of key you need just by looking at the top of the key, called the head or base. This is the part of the mechanically cut key that you hold in your fingers when trying to lock or unlock a door. Kwikset keys are typically more rounded and have between one to three-hole openings on the head. Schlage keys are usually a bit rougher at the top with a block or edgy look to them.

Keyway Slotting Machine

Engraving

Sometimes, the key will have an engraving on the head. Inside the engravings is a code containing letters and/or number combinations, such as KW1, KW10, 5, 6, 66, 65, and so on. Schlage key types usually have a code such as SC1, 68, or C.

Grooves

Place the key down flat with the head on top and the tip on the left. Flip the key over, and look at the correct side of the key. A Kwikset key will have two grooves or indentations. A Schlage key will have only one groove or indentation. Some keys have grooves that look similar, but the grooves alone don’t mean that the keys are compatible with the keyway.

Keyway Slotting Tools

Slot Machine Keys

Interchangeable

Some keys may appear to be interchangeable with another, but over time will wear down the lock if you keep using them on the wrong keyway. For instance, Weiser keys usually contain engravings such as WR5 or WR3 and can be duplicated using the Kwikset key type. However, Kwikset keys cannot be used in a Weiser lock.

Keyway Slot

There are different ways to determine which type of keyway is the one that you need most. When in doubt, seek the advice of a professional. A skilled and trained locksmith will be able to take one look at your key and tell you what type of keyway you have and be able to recommend which are the best keyways for your needs. Let Phoenix Locksmith 24 help you with your keyways and keyways types.