Many calipers on the market today are forged to hit a lower price point. This limits design as threads and internal flow circuit need to be machine detailed afterwards.
HEL calipers are precision machined entirely from race grade solid billet 6082-T6 aluminium - maximising weight and minimising material used. Machined and forged calipers are NOT comparable, so be sure to insist on machined for the very best design, precision construction and finish on the market.