Tramex Hygro-i2 19mm Hole Extra Long Liners & Caps – 50 Pack
Pack of 50 Extra Long Hygro-i ® Hole liners and Caps with Extra Long Insertion Tool. To perform ASTM F2170 in-situ RH testing of thick concrete floors and slabs to a maximum depth of over 10″. Sleeve length is 4.72″. Depth of reading should be 40% of the complete slab depth.
Use a 3/4″ drill bit.
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