30 Lb. Class
Model 4008 – 7/8″ HX x 3 1/4″ CK
Model 4010 – 1″ SQ x 4 1/4″ CK
Standard is 7/8″ HX
20 Lb. Class
Model 4001 HX7/8 – 7/8″ HX x 3 1/4″ CK
Model 4001 SQ3/4 – 3/4″ SQ x 2 3/4″ CK
Standard is 7/8″ HX
Features:
- Four Bolt Backhead (4002/4010)
- Built-in Automatic Oiler (4001/4010)
- Heavy Duty Fronthead
- Replaceable Hex Chuck Bushing
- Latch Type Retainer
- Swivel Air Inlet Fitting, except Model 4001
- Drop Forged Construction
- Mufflers Available






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