Conical Adapter for Bolt Axes and Boreholes Ø27mm – 30' Circular Level

The Bohnenstingl conical adapter set is designed for surveying the centre axes of bolts and boreholes. The conical adapter can be used in different orientations to measure vertical bolts and holes, while the centring pin and spherical prism provide the measuring reference.

This complete configuration includes a 1.5" (38.1mm) ball prism, magnetic ball base, conical adapter, centring pin and a Ø27mm circular bubble level with 30' sensitivity. The circular level helps align the assembly vertically during measurement.

Key Features

• Complete measuring set for bolt axes and borehole centres

• Suitable for measuring vertical bolts and boreholes

• Reversible conical adapter for different measurement applications

• 1.5" (38.1mm) spherical prism

• Magnetic ball base with M8 external thread

• Ø12mm stainless steel centring pin

• Ø27mm circular bubble level with 30' sensitivity

Technical Specifications

• Product type: Conical adapter measuring set

• Application: Bolt-axis and borehole measurement

• Conical adapter: Article 1481

• Ball prism: Article 1448, Ø1.5" (38.1mm)

• Magnetic ball base: Article 1466.08a

• Centring pin: Article 1482, Ø12mm

• Circular bubble level: Article 1466.B

• Bubble level diameter: Ø27mm

• Bubble level sensitivity: 30'

Product Overview

This Bohnenstingl conical adapter configuration provides the components needed to measure the centre position of suitable bolts and boreholes. The conical adapter centres itself over the axis of a hole, while the centring pin and prism allow the position to be measured using a total station. The circular bubble level helps keep the assembly vertical for measurement.

The set comprises the following components: ball prism 1448, magnetic ball base 1466.08a, conical adapter 1481, centring pin 1482 and Ø27mm circular level 1466.B.