THE TRADEOFFS, EXPLAINED

Farmer-Helper FH-EFGC155 hammer vs WoodMaxx FM-78 hammer: 60 or 70 inches under a 72-inch manual limit

FH-EFGC155 and FM-78 are both PTO-rated hammer flails that fit inside a 72-inch, 1,100-lb manual limit such as the Kubota MX4900’s. Their power ranges overlap from 30 to 65 PTO hp. The choice is mostly width and documentation: FM-78 cuts 70 inches and covers a 69.7-inch tractor, while FH-EFGC155 cuts 60 and costs less, but Betstco’s page and manual disagree on its power basis and ceiling.

By Acreage Equipment · Reviewed November 8, 2026 · Specification research, not a field test

Compare these two with my tractor Compare the complete purchase cost →

Farmer-Helper

FH-EFGC155 · Hammer blades

25–65 PTO hp on current page; linked-manual basis/limit conflicts · 60″ Cutting width, inches

$2,408 checked November 7, 2026

Check current price at Farmer-Helper

Specs & tractor check →

WoodMaxx

FM-78 · Hammer blades

30–65 PTO hp · Hammer blades only · 70″ Cutting width, inches

$3,900 checked November 7, 2026

Check current price at WoodMaxx

Specs & tractor check →

START WITH THE DECISION

Consider FH-EFGC155 for a lower price and a 60-inch cutShortlist FH-EFGC155 when a 60-inch cut suits the work, the price difference matters and Betstco confirms which power range and basis apply to the delivered unit.

Consider FM-78 to cover a 70-inch tractorShortlist FM-78 when the tractor is near 70 inches wide, the tractor’s PTO rating is between 30 and 65 hp, and a single documented range matters more than price.

Read the evidence behind the choice ↓

Observed U.S. seller prices, checked November 7, 2026, from the retained product records. Prices were not refreshed for this comparison. Tax, shipping, options and the final seller quote may change the delivered total; these are dated observations, not a live price or stock feed. Open your saved comparison →

The differences that matter.

25–65 against 30–65 PTO hp

Betstco’s FH-EFGC155 page labels 25–65 hp as PTO horsepower. Its linked Rev 12-12-17 manual gives an 80-PTO-hp ceiling on p16 and a footnote on p23 that switches the minimum to engine horsepower on hydrostatic tractors. WoodMaxx’s manual lists FM-78 with hammers at 30–65 PTO hp.

A 41.3-PTO-hp tractor is inside both on any reading. Between 25 and 30 PTO hp only FH-EFGC155 applies; above 65, ask Betstco which ceiling governs.

60 inches against 70

FH-EFGC155 cuts 60 inches and is 67 inches overall. FM-78 cuts 70 inches.

On a tractor 69.7 inches wide at minimum tread, FM-78 roughly matches the tractor’s width; FH-EFGC155 leaves the rear tires outside the cut unless offset covers them. Both are under a 72-inch manual limit.

About 720–741 lb against 880 lb

Betstco’s page lists FH-EFGC155 at 741 lb and its manual at 720 lb. WoodMaxx’s manual lists FM-78 at 880 lb product weight; its page lists 710 lb mower-only plus a 39-lb shaft.

Both reference weights are under a 1,100-lb manual flail limit, FM-78 by 220 lb. Neither maker gives a confirmed complete operating weight.

Category 1 against Category 1 or 2

FH-EFGC155 is listed for Category 1. FM-78 fits Category 1 or 2.

On a Category I & II tractor both mount; only FM-78 documents a Category 2 route.

$2,408 against $3,900

FH-EFGC155 was observed at $2,408 and FM-78 hammer at $3,900 on November 7, 2026.

FM-78 cost $1,492 more on these dated observations for 10 more inches of cut and a single documented PTO range.

A CONDITIONAL SHORTLIST

Which direction makes sense?

Consider FH-EFGC155 for a lower price and a 60-inch cut

Shortlist FH-EFGC155 when a 60-inch cut suits the work, the price difference matters and Betstco confirms which power range and basis apply to the delivered unit.

Check current price at Farmer-Helper Prepare questions for the seller

Consider FM-78 to cover a 70-inch tractor

Shortlist FM-78 when the tractor is near 70 inches wide, the tractor’s PTO rating is between 30 and 65 hp, and a single documented range matters more than price.

Check current price at WoodMaxx Prepare questions for the seller

Keep these source limits with the decision.

FH-EFGC155’s page gives 25–65 PTO hp and 741 lb; the linked manual gives an 80-PTO-hp ceiling, an engine-basis footnote for hydrostatic tractors and 720 lb.

FM-78’s 880-lb manual product weight differs from the page’s 710 lb mower-only plus 39-lb shaft.

This comparison reuses the manufacturer evidence retained in the product records reviewed November 7, 2026 (LFS61 price November 6); product pages were not re-fetched on November 8. FH-EFGC155 uses the current product page and the linked Rev 12-12-17 manual; FM-78 uses the current product page and the 2025-to-current WoodMaxx manual.

FOLLOW THE NUMBERS

Sources & documentation

Research record reviewed November 8, 2026. Confirm the current manual and the exact revision supplied with your machine.

Farmer-Helper FH-EFGC155 · Hammer blades official product pageHP Requirements at PTO (25–65); Cutting Width; Weight; price
Currently linked EFGC standard manual, Revision 12-12-17, pp16–23Rev 12-12-17: p16 80 PTO hp ceiling; p23 weights and minimum-HP footnote (engine basis on hydrostatic tractors)
Official EFGC series: fixed models and separate hydraulic-offset kits
Official Betstco manual index
WoodMaxx FM-78 official product page30–65 PTO hp; 70-in. cut; mower-only and shaft weights; price
WoodMaxx 2025-to-current FM series operator manualPrinted p40 / PDF p41: blade-specific PTO requirements, cutting width, hitch category, product weight
WoodMaxx manual index: Models 2025 to current