Also known as a strap duplicator.
Manufactured from high grade spring steel.
Used to locate a hidden hole and capable of centre punching sheet to align with the hidden pilot hole.
Comes with a hardened marking pin. Permits the marking of sheet stock from a hidden pilot hole.
5 piece set including one each of the following 8-1/2 inch hole finders:
No40 (part no 100990)
No30 (part no 100991)
No21 (part no 100992)
No10 (part no 100993)
1/4 inch (part no 100994)