import type { ToleranceInput, ToleranceResult } from './types.js';
/**
 * The nominal size ranges the tolerance tables cover, in millimetres, from the smallest
 * upward. A size belongs to the range where `over < size <= upTo`, matching how the
 * standard states its own bounds.
 *
 * Exported because a caller cannot enumerate the ranges by probing `tolerance()`, and
 * restating them on its side would be a second source for the same figures: the day the
 * covered range moves, the caller would keep listing the old one. Anything that presents
 * results per size range — a lookup table, a range selector — should read them here.
 */
export declare const ISO286_SIZE_RANGES: ReadonlyArray<{
    readonly over: number;
    readonly upTo: number;
}>;
/**
 * Calculate ISO tolerance band for a given nominal size and tolerance class.
 *
 * @reference ISO 286-1:2010 (tolerance-grade table, IT4-IT14) and ISO 286-2:2010 (fundamental
 *   deviation tables for hole/shaft letters). Cell-level values are transcribed from and
 *   golden-tested against the published tables — see `tolerance.test.ts`'s "against the ISO
 *   286-1/286-2 table" describe blocks, including the ISO 286-1 delta-term correction (K/M/N/P
 *   above H) documented there.
 * @throws RangeError if the nominal size is out of range, the IT grade is unknown,
 *   or the deviation letter is unknown
 */
export declare function tolerance(input: ToleranceInput): ToleranceResult;
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