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This is an authentic HHHH replacement part, sourced from the original manufacturer for use with rotary hammers. The special knob assembly connects to the housing and is used when adjusting the speed of the hammer. This item is available as an individual replacement part.
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| Brand | Model Number | Description |
|---|---|---|
| DeWALT | D25831K | Hammer Drill - 12 lb. SDS Max Demolition Hammer |
| DeWALT | D25831K-AR | Hammer - Hammer |
| DeWALT | D25831K-B2 | Hammer - Hammer |
| DeWALT | D25832K | Hammer Drill - Chipping Hammer |
| DeWALT | D25832K-AR | Hammer Drill - Chipping Hammer |
| DeWALT | D25832K-B2 | Hammer Drill - Chipping Hammer |
| DeWALT | D25832K-B2C | Hammer Drill - Chipping Hammer |
| DeWALT | D25832K-B3 | Hammer Drill - Chipping Hammer |
| DeWALT | D25832K-BR | Hammer Drill - Chipping Hammer |
| DeWALT | D25840 | Hammer Drill - SDS Max Chipping Hammer |
| DeWALT | D25840K | Hammer - Sds Max Chipping Hammer |
| DeWALT | D25840K-AR | Hammer - Sds Max Demolition Hammer |
| DeWALT | D25851K | Hammer Drill - Spline Chipping Hammer |
| DeWALT | D25872K | Hammer Drill - Chipping Hammer |
| DeWALT | D25890 | Hammer Drill - Demolition Hammer |
| DeWALT | D25890K | Hammer - Demolition Hammer |
| DeWALT | D25890K-AR | Hammer - Demolition Hammer |
| DeWALT | D25891K | Hammer Drill - SDS Max Chipping Hammer |
| DeWALT | D25891K-AR | Chipper Shredder - 9kg Heavy Chipper |
| DeWALT | D25892K | Hammer Drill - Chipping Hammer |
| DeWALT | D25892K-AR | Hammer Drill - Chipping Hammer |
| DeWALT | D25892K-B2 | Hammer Drill - Chipping Hammer |
| DeWALT | D25899 | Hammer Drill - SDS Max Demolition Hammer |
| DeWALT | D25899K | Hammer Drill - 21 lb SDS Max Demolition Hammer |
| DeWALT | D25899K-AR | Hammer - 10kg Demolition Hammer |
| DeWALT | D25899K-B2 | Hammer - 10kg Demolition Hammer |
| DeWALT | D25900 | Hammer Drill - SDS Demolition Hammer |
| DeWALT | D25900K | Hammer - Sds Max Demolition Hammer |
| DeWALT | D25900KAR | Hammer - Demolition Hammer |
| DeWALT | D25900KB2 | Hammer - Demolition Hammer |
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
_WW_1.gif "Part Location Diagram of 487291-00 DeWALT Knob Assy")
