1/4" UNF LEFT HAND Chaser set HSS (1/2" - 12mm Coventry diehead) 1/4x28 (Suitable for 1/2 Diehead) S20 grade for free cutting steels
Specification LEFTHAND 1/4.28 UNF High Speed Steel chasers die sets for 1/2" (12mm) coventry diehead High Speed Steel Note: These thread chasers also fit Herbert diehead copies such as Rubometric & OSG Part Number ES-7953Visit the JLS Supplies Ltd website for more information on 1/4" UNF LEFT HAND Chaser set HSS (1/2" - 12mm Coventry diehead) 1/4x28 (Suitable for 1/2 Diehead) S20 grade for free cutting steels