3/8x19 BSPT Chaser set (3/4" Diehead) S20 grade for free cutting steels
Specification Chaser die set for 3/4" (20mm) coventry diehead Chasers Note: These thread chasers also fit Herbert diehead copies such as Rubometric & OSG Part Number ES-7151Visit the JLS Supplies Ltd website for more information on 3/8x19 BSPT Chaser set (3/4" Diehead) S20 grade for free cutting steels