
MechMaxx
KDK63H
63″ KDK Cat 2 side-shift flail that steps up from NAM-H with a heavier frame, 2.7 lb hammers (14 × 2.7 = 37.8 lb total vs NAM68H’s 50.4), 6″ rotor.
- Cut
- 63″
- PTO HP
- 50–75
- Hitch
- Cat 2 · Side shift
- Price
- $3,399$54/in · 9.5 HP/ft
Cat 2 decks for tougher roadside work
KDK63H and KDK72H — Cat 2, 6″ rotor, 2.7 lb hammers (fewer of them: 37.8 / 43.2 lb total vs NAM’s 50.4), ~13″ extend, 50–75 HP. Heavier frame, not more rotor steel than NAM72H.
KDK is MechMaxx's Cat 2 side-shift line for 50–75 HP utility tractors. Individual hammers are 2.7 lb (heavier than NAM's 1.8), but totals are 37.8 / 43.2 lb versus NAM's 50.4. Heavier frame, 6″ rotor, five belts, ~13″ extend — not more rotor steel than NAM72H. Manufacturer-listed tip speed 31.5 mph looks anomalously low versus ~99 mph from RPM × swing.
Compare against all side-shift picks including Woodmaxx FM-H models.

MechMaxx
63″ KDK Cat 2 side-shift flail that steps up from NAM-H with a heavier frame, 2.7 lb hammers (14 × 2.7 = 37.8 lb total vs NAM68H’s 50.4), 6″ rotor.

MechMaxx
72″ KDK Cat 2 side-shift flail for buyers who want NAM72H width in a heavier Cat 2 frame. Individual hammers are 2.7 lb; total hammer mass is 43.2 lb vs NAM72H’s 50.4.