Tisco 220398 Pack of 20 Flail Blades

What It Is

The Tisco 220398 is a pack of 20 flail blades designed for heavy-duty brush mowing and pasture maintenance. These blades fit flail mowers—not standard rotary decks—and are commonly used on tractors, skid steers, or dedicated flail mowers to shred thick grass, weeds, and light brush.

Fitment & Compatibility

Before buying, verify three things:

• Blade dimensions: Tisco 220398 blades measure approximately 4-1/2" long x 2-1/2" wide with a 3/8" center hole. Measure your existing blades to confirm these match.
• Mounting style: These are “Y”-style flail blades (two cutting edges). Check that your mower’s hanger or shackle system accepts this shape—most common on Ford/New Holland, John Deere, and Bush Hog flail mowers, but not universal.
• OEM cross-reference: Tisco 220398 replaces OEM numbers like Ford 220398, New Holland 220398, and many aftermarket equivalents. Confirm your mower’s model number against a cross-reference list (available from Tisco or dealer).
• Quantity: 20 blades is a partial set for most flail mowers (full sets often require 40–80+ blades). Use only for replacement of worn blades, not a full re-knifing.

Key Things to Know

• Quality: Tisco is a reputable aftermarket brand. These blades are heat-treated steel, but may not last as long as OEM in heavy rock or sand conditions.
• Installation difficulty: Moderate. Requires removing retaining pins or clips and sliding blades off hangers. No special tools beyond a hammer and punch for stubborn pins.
• Common gotcha: Flail blades must be balanced in pairs or sets across the rotor. Replacing only 20 blades on a 60-blade rotor can cause vibration. Replace all worn blades at once for best performance.
• Safety: Always disconnect the PTO and battery before working. Flail blades spin at high speed—wear gloves and eye protection.

Should You Buy It

If you own a flail mower (not a rotary deck) and need a cost-effective partial replacement for worn “Y”-style blades, this Tisco 20-pack is a solid choice. It’s not for full mower re-knifing (buy a complete set instead), but it’s ideal for patching a few damaged blades on a machine that still has good overall blade life. Verify your blade measurements and hanger style first.