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In this paper we characterise cone points of arbitrary subsets of Euclideanspace. Given $E \subset \mathbb{R}^n$, $x \in E$ is a cone point of $E$ if andonly if \begin{align*}  \int_{0}^1 \beta_{E}^{d,2}(B(x,r))^2 \frac{dr}{r} < \infty, \end{align*} upto a set of zero $d$-measure. The coefficients $\beta_E^{d,2}$ are a variationof the Jones coefficients. This is a high dimensional counterpart of a theoremof Bishop and Jones from 1994. We also prove similar results for$\alpha$-paraboloid points, which are the $C^{1,\alpha}$ rectifiabilitycounterparts to cone points: $x \in E$ is an $\alpha$-paraboloid point if andonly if \begin{align*}  \int_0^1 \frac{\overline{\beta}_{E}^{d,2}(B(x,r))^2}{r^{2\alpha}} \,\frac{dr}{r} < \infty \end{align*} up to a set of zero $d$-measure. Here,$\overline{\beta}^{d,2}_E$ is another variant of the Jones coefficients,introduced by Azzam and Schul.

Cone and paraboloid points of arbitrary subsets of Euclidean space