Center hole
6-point star blade hole and Oregon's Y-shaped replacement
Oregon says MTD-built blades with a 6-point star are replaced by its blades with a Y-shaped hole that fits the 6-point star on the spindle. Craftsman's one-blade set.
Also listed as 6 pt. star, six-point star, Y, 6 pt. star
Short answer
Oregon says MTD-built blades with a 6-point star hole are replaced by Oregon blades with a Y-shaped center hole that fits the 6-point star on the spindle. Oregon names this "Y, 6 pt. star" and gives it a size such as 5/8 or 11/16. Craftsman's CMXGZAM110108 42-inch set is one blade with a 6-point star hole.
Key facts
- How to recognize it
- A star-shaped hole with six points around the center.[1]
- How to measure or name it
- Identified by name. Oregon's Y-shaped holes for 6-point star spindles also carry a size, 5/8 or 11/16.[2][1]
- What it mounts to
- The spindle: Oregon says its Y-shaped hole fits the 6-point star on the spindle of MTD-built mowers.[3][4]Oregon's statement for MTD-built blades only.
- How catalogs name it
- Oregon records it as "Y, 6 pt. star" with a size (for example 98-056, "11/16 Y, 6 pt. star"). Craftsman writes "6-point star hole pattern".[1][5]
- Blades made with it
- Craftsman CMXGZAM110108: one 42-inch bagging and side-discharging blade with a 6-point star hole. Oregon 98-056: 11/16 Y, 6 pt. star.[5][1]
- Mowers and decks that use it
- Craftsman: CMXGZAM110108 replaces 942-04308/742-04308 and 942-04312/742-04312 on 42-inch decks. Oregon: MTD-built mowers with a 6-point star spindle.[5][3]Craftsman lists no specific models.
- Common mix-ups
- A Y-shaped Oregon hole and a 6-point star are different shapes that Oregon pairs for MTD-built spindles. Do not extend that pairing to other makers.[3]
- Not confirmed
- Not confirmedModel lists, blade lengths, and whether non-MTD spindles use the same star.
Watch out for
- Never drill, grind or file a center hole to fit, and never fit a blade whose hole does not match your spindle or adapter.
- Craftsman's CMXGZAM110108 is a single blade, while its other 42-inch sets hold two. Count before you order.
This page describes a hole shape. It is not a fit list: use the blade's part number and your mower's model.
Questions
Will an Oregon blade with a Y-shaped hole fit my 6-point star spindle?
Oregon says its Y-shaped hole fits the 6-point star on the spindle of MTD-built mowers. For other makers that is not established; match the part number.[3]
Why does the Craftsman CMXGZAM110108 hold only one blade?
Craftsman lists it as "(1) Blades" with a 6-point star hole, replacing 942-04308/742-04308 and 942-04312/742-04312. Check how many your deck uses.[5]