3/8.16 UNC LEFT HAND Coventry Die Head Chaser set 1/2x12 (3/4 Diehea S20 grade for free cutting steels
Specification LEFTHAND Chasers die set for 3/4" (20mm) Coventry Die Head Chaser sets HSS set 3/8X16 UNC Note: These thread chasers also fit Herbert diehead copies such as Rubometric & OSG Part Number ES-7972Visit the JLS Supplies Ltd website for more information on 3/8.16 UNC LEFT HAND Coventry Die Head Chaser set 1/2x12 (3/4 Diehea S20 grade for free cutting steels