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Used to establish the proper depth of the 1 1/2″ diameter hole and center the 5/8″ hole for proper Vapor Pin® sampling device installation to accept the secure cover. While wearing PPE, drill a 1½-inch diameter hole into the concrete slab to a depth of approximately 1 3/4 inches. Pre-marking the desired depth on the drill bit with tape will assist in this process. Remove cuttings from the hole and place the Drilling Guide in the hole with the conical end down (Figure 3). The hole is sufficiently deep if the flange of the Drilling Guide lies flush with the surface of the slab. Deepen the hole as necessary, but avoid drilling more than 2 inches into the slab, as the threads on the Secure Cover may not engage properly with the threads on the Vapor Pin® sampling device.
|Dimensions||2,1 × 2,1 × 2,2 in|