 
   
  How to measure your post: Please note, chuck and chuck adapter sizes shown are actual inside dimensions of the opening.  To select the proper adapter, measure the longest outside dimension of the post to be driven to confirm it will fit inside the opening. In the case of square or rectangular posts measure the longest diagonal from corner to corner.
    3-7/8" Master Chuck-Lok for use with the HPD 60 Medium-Duty Post Driver            
            
              
  - PRODUCT ID: RPEDZCH378 | 3-7/8" ID Master Chuck  included w/RPEDYHPD60378, the HPD 60 Medium-Duty Post Driver            
  
3-7/8" Master Chuck-Lok for use with the HPD 60 Medium-Duty Post Driver            
            
              
  - PRODUCT ID: RPEDZCH378A10 | 1" ID Chuck Adapter for posts from 0" to 7/8".  Best suited for driving electrical ground rod.
 
- PRODUCT ID: RPEDZCH378A15 | 1-1/2" ID Chuck Adapter for posts 7/8" to 1-3/8"
 
- PRODUCT ID: RPEDZCH378A20 | 2" ID Chuck Adapter for posts 1-3/8" to 1-7/8"
 
- PRODUCT ID: RPEDZCH378A20H | 2" ID Heavy-Duty Chuck Adapter for posts from 1-3/8" to 1-7/8".  Ideal for tent stake installation.
 
- PRODUCT ID: RPEDZCH378A25 | 2-1/2" ID Chuck Adapter for posts 1-7/8" to 2-3/8"
 
- PRODUCT ID: RPEDZCH378A30	| 3" ID Chuck Adapter for posts 2-3/8" to 2-7/8"
 
- PRODUCT ID: RPEDZCH378A35 | 3-1/2" ID Chuck Adapter for posts 2-7/8" to 3-1/8"
 
- PRODUCT ID: RPEDZCH378AC112 | 1-1.5# U-Channel Post Drive Chuck Adapter accommodates 1 to 1-1/2 lb. U-Channel Posts 
 
- PRODUCT ID:  RPEDZCH378AC2 | 2 to 2-3/4# U-Channel Post Drive Chuck Adapter accommodates 2 to 2-3/4 lb. U-Channel Posts
 
- PRODUCT ID: RPEDZCH378AC3 |	3-4# U-Channel Post Drive Chuck Adapter accommodates 3 to 4 lb. U-Channel Posts
 
  
               Schedule 40 Pipe Drive Caps for use with the 3-7/8" ID Master Chuck 
            
            
              
  - PRODUCT ID: RPEDZCH378AS40D2 | 2" Schedule 40 Pipe Drive Cap w/T-Bar & Clip
- PRODUCT ID: RPEDZCH378AS40D25  | 2-1/2" Schedule 40 Pipe Drive Cap w/T-Bar & Clip
- PRODUCT ID: RPEDZCH378AS40D3 | 3" Schedule 40 Pipe Drive Cap w/T-Bar & Clip
  
    U-Channel Post Breakaway Anchor Driver  for use with the 3-7/8" ID Master Chuck 
    
      
        
          - PRODUCT ID: RPEDZCH378ACB | U-Channel Post Anchor Drive Chuck Adapter 
 
     
    
    Drive Cap  for use with the U-Channel Post Breakaway Anchor Drive Chuck Adapter
    
      
        
          - PRODUCT ID: RPEDZCH378ACBD | U-Channel Drive Cap
 
 
     
    
          Square Post Breakaway Anchor Drive Chuck Adapter  & Puller for use with the 3-7/8" ID Master Chuck 
            
            
              
  - PRODUCT ID: RPEDZCH378ASB	| Square Post Drive Chuck Adapter
  
               Drive Caps (Low Drive Extension) 
                 for use with the Square Post Breakaway Anchor Chuck Adapter
               
               
              
  - PRODUCT ID: RPEDZCH378ASBD125  |	1-1/4" Square Drive Cap (1" pin)
    
- PRODUCT ID: RPEDZCH378ASBD15 | 	1-1/2" Square Drive Cap (1-1/4" pin)
  
- PRODUCT ID: RPEDZCH378ASBD175 | 	1-3/4" Square Drive Cap (1-1/2" pin)
    
- PRODUCT ID: RPEDZCH378ASBD2 | 	2" Square Drive Cap (1-3/4" pin)
    
- PRODUCT ID: RPEDZCH378ASBD225 | 	2-1/4" Square Drive Cap (2" pin)
    
- PRODUCT ID: RPEDZCH378ASBD25 | 	2-1/2" Square Drive Cap (2-1/4" pin)