Delmhorst 4-E Electrode
Comes with 4 uninsulated 2497/A-100 contact pins for 5/16″” penetration.
Dry-kiln operators: Use on kiln-dried boards up to 2″” and on air-dried boards up to 5/4.
Leather producers: Use for tough leather.
Can also be fitted with A-103 uninsulated pins with 1 3/32” length and 11/16” penetration.