variable diameter drill bits:
UNI-1
UNIBIT #1
1/8" - 1/2"
13 HOLE SIZES
UNI-2
UNIBIT #2
3/16" - 1/2"
6 HOLE SIZES
UNI-3
UNIBIT #3
1/4" - 3/4"
9 HOLE SIZES
UNI-4
UNIBIT #4
3/16" - 7/8"
12 HOLE SIZES
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