This tooling has been used in rocker arm thread repair
where the threads must start a few millimeters deep below a "Slot".
The core drill countersink combination will have to be set by hand.
We use this special 4 flute core drill because it makes drilling
thru a slot easy. Using a traditional 2 flute is difficult because the
drill bit wants to hang on the slot and break.
INSTRUCTIONS CLICK HERE:
Rocker arm support can be GM style 3100 and 3400 models along
with Buick and
others.
The insert must be below the notched portion
of the support,
so our standard repair kit for the M10x1.5 will not work.
The special 4 flute core drill included will cut thru the notched
area without difficultly. A standard 2 flute drill would hang on the sides.
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