• The Mini-Ductor Coil Kit is an accessory for Mini-Ductor. The kit enables the user to heat frozen or stuck nuts and bolts up to 1 1/2" in size. • Includes: • One 1 3/4" Preformed Coil (IDI-MD99-607) • One 1 1/2" Preformed Coil (IDI-MD99-608) • One 1 1/4" Preformed Coil (IDI-MD99-609) • One 1" Preformed Coil (IDI-MD99-610) • Two 7/8" Preformed Coil (IDI-MD99-601) • One 3/4" Preformed Coil (IDI-MD99-611) • One 7/8" Preformed Coil (IDI-MD99-605)