Major Mfg - HIT-21 - Mortise Cylinder Locating & Drill Guide Smart Keys 1989-1990 Buick Park Avenue

1989-1990 Buick Park Avenue

the original key MUST have the letter E stamped on the board

- CHEVROLET 13575175 433MHz 3BTN

G8001-G9000

2016 - 2021 Chevrolet Spark

Major Mfg - HIT-21 - Mortise Cylinder Locating & Drill Guide Smart Keys 1989-1990 Buick Park AvenueInstalling an inside cylinder on an existing mortise lock can be frustrating to center correctly. The HIT 21 will make the job fast, accurate and easy. You don't even have to take the mortise lock out of the door. Just remove the outside cylinder, thread the HIT 21 into the mortise case until it contacts the mortise cavity on the opposite side. Next, drill a pilot hole, then come from the outside in with a hole saw. Nothing could be easier! The HIT 21