5/16x22 BSW LEFT HAND Coventry Die Head Chaser Set HSS (1/2 Diehead) S20 grade for free cutting steels
Specification LEFTHAND Chasers die set for 1/2" (12mm) coventry diehead 5/16x22 Note: These thread chasers also fit Herbert diehead copies such as Rubometric & OSG Part Number ES-7936Visit the JLS Supplies Ltd website for more information on 5/16x22 BSW LEFT HAND Coventry Die Head Chaser Set HSS (1/2 Diehead) S20 grade for free cutting steels