This precision orienting fixture is used to measure the azimuth and dip of in-place cores drilled with 1 1/8″ core drill bits (1″ core ID). It features an anodized aluminum tube and orienting platform which is adjustable using a tripod-style clamping handle. A small cylindrical wedge is included, which can be fitted onto the tube (as shown near the bottom of the photo) and used to lock the orienter in place over the in-place core while measurements are being made. The platform is machined to accommodate a clear plastic sun compass (included) or, with sun compass removed, a Brunton pocket transit for magnetic azimuth measurements. (Orienter will accommodate only the aluminum-case Brunton models. The plastic/composite Compro Brunton models cannot be used.) Once the platform is leveled using a Brunton compass, sun and/or magnetic azimuths can be measured, and core dip angle can be measured using the fixture’s vertically mounted protractor.
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