The 1.5THS magnetic adapter provides an SMR nest which fits into any corner and puts a 1.5" diameter SMR exactly 0.800" away from the rising surface, within ±0.0005". It also holds the centerpoint of the SMR 1.000" (or 25 mm for the metric version) ±0.0005" above the base surface. A chamfer on the bottom side of this adapter provides a relief for any fillets or various strange things happening at the junction between the surfaces of the object being measured. The SMR seats on a 3-point conical land. An optical alley allows the SMR to be rotated down further for a lower shooting angle. Use the table below to find the item number for the desired target offset.