From the Wikipedia article on
Bolo knife, the photos below were described as:
Early 20th century Cebuano Police officers armed with a pinuti (left) and a sundang (right)
and
An assortment of bolos and related implements include:
1. The all-purpose bolo: Used for all sorts of odd jobs, including breaking open coconuts.
2. The haras: Similar to a small scythe, it is used for cutting tall grass.
3. The kutsilyo: The term comes from the Spanish word cuchillo, meaning knife. Generally used to kill and bleed pigs during slaughter.
4. A smaller bolo.
5. The bolo-guna: A bolo specifically shaped for digging out roots and weeding.
6. The garab: Used to harvest rice.
7. A large pinuti: Traditionally it is tipped in snake, spider or scorpion venom and used for self-defense.
8. The sundang: Supposedly used mainly to open coconuts. The sundang, also called "tip bolo" or itak, was a popular weapon of choice in the revolution against the Spanish colonial government and during the Philippine–American War.
There are about 170 dialects in the Philippines, by the way. Thus, it's very likely that the same term may refer to a different blade type in another locale (or vice versa).