Use with twist drills to prevent excessive penetration. For controlling depth when drilling holes through multiple surfaces. Black oxide finish on cold rolled steel. Sizes included: 3/16', 1/4', 5/16', 3/8', 7/16' and 1/2'. Includes hex wrench.
Use with twist drills to prevent excessive penetration. For controlling depth when drilling holes through multiple surfaces. Black oxide finish on cold rolled steel. Sizes included: 3/16′, 1/4′, 5/16′, 3/8′, 7/16′ and 1/2′. Includes hex wrench.
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