Home / 1-XS Handheld Setup Overview / Front Indexing Piece Set for 1-XS (4/2 – 6/2) Front Indexing Piece Set for 1-XS (4/2 – 6/2) One "Front Indexing Piece Set for 1-XS (4/2 - 6/2)" contains the following items: Front indexing Piece XL 4/2 (Ø 12.0 mm (0.472 in)) Front Indexing Piece XL 5/2 (4/4) (Ø 14.0 mm (0.551 in)) Minimum quantity: 1 Front Indexing Piece XL 6/2 (5/4) (Ø 16.0 mm (0.630 in)) Minimum quantity: 1