Product Description
OZ-Post® HSP-I25 White Hammer-Spacer — Centers OH-01 Driver in I25-850 Ornamental Anchors
- Keep the Driver Centered — Slides over the OH-01 Oz-Hammer to keep impacts centered inside the I25-850 2-1/2″ square sleeve for smoother, straighter installs
- Cleaner, Faster Driving — Reduces wobble and bounce when jackhammer-driving I25-850 anchors, helping maintain plumb
- Color-Coded & Durable — Steel, powder-coated White spacer for quick ID and long service life
- Purpose-Built Fit — Bridges the gap between the 2″ Ø OH-01 driver and the 2-1/2″ I.D. I25-850 sleeve
The OZ-Post HSP-I25 Hammer-Spacer makes jackhammer installs of I25-850 (2-1/2″ square) ornamental anchors more controlled and repeatable. By centering the OH-01 driver inside the sleeve, the spacer delivers square, consistent blows, reducing chatter and helping you keep anchors plumb as you drive. Installers grab the White HSP-I25 for any run using 2-1/2″ square ornamental posts where speed, consistency, and a clean jobsite matter.
Why Choose This
- Consistency at scale — Uniform, centered impacts across long runs
- Better control — Helps minimize driver “wander” that can tilt anchors
- Jobsite tough — Steel construction with a protective powder-coat
Specifications
| Model / Item # | HSP-I25 Hammer-Spacer — Item 40580 |
| Fits Anchor | I25-850 (for 2-1/2″ square ornamental posts) |
| Used With Driver | OH-01 Oz-Hammer jackhammer driver bit (2″ diameter) |
| Spacer Color | White (color-coded for 2-1/2″ I-Series) |
| Material / Finish | Steel, powder-coated |
| Approx. Weight | 1.3 lb |
| Approx. Dimensions | 6″ × 6″ × 6″ |
| Typical Usage | Centering the OH-01 driver when jackhammer-driving I25-850 anchors |
Only one spacer and one driver are needed to drive all corresponding I-Series posts of the same family.
Installation
Attach the OH-01 driver to your jackhammer. Slide the HSP-I25 spacer onto the OH-01. Position the driver/spacer stack into the I25-850 sleeve and drive the anchor to grade, keeping it plumb. The spacer keeps the driver centered to help prevent chatter and sleeve damage. Verify plumb as you go, and secure the post per your fence system’s instructions.
Resources: Manufacturer’s Warranty
Buying Guide
- Anchor match: Use HSP-I25 only with I25-850 (2-1/2″). For 3″ posts, see HSP-I3 (Brown).
- Driver kits: For multi-post runs, the JDK-10 Jackhammer Driver Kit is fastest (includes OH-01); for short runs, MDK-13 Manual Driving Kit is a solid option (use the spacer specified for your anchor).
Frequently Asked Questions
- Why do I need a spacer with I25-850?
- The anchor sleeve is larger than the driver bit. The spacer fills that gap so strikes stay centered and controlled.
- Does HSP-I25 work with OH-02?
- No. OH-02 is for round anchors; HSP-I25 is for square I-Series anchors with the OH-01 driver.
- Is the spacer reusable?
- Yes. It’s a steel, powder-coated tool intended for repeated use.
- Can I use this with the manual driver kit?
- Yes. Manufacturer materials reference using the appropriate spacer with MDK/JDK installs for correct centering.
Comparison
| Spacer (Color) | Fits Anchor Family | Used With Driver | Notes |
|---|---|---|---|
| HSP-I25 (White) — this item | I25-850 (2-1/2″ square) | OH-01 | Centers 2″ driver in 2-1/2″ sleeve |
| HSP-I3 (Brown) | I3-850 (3″ square) | OH-01 | Centers driver in 3″ sleeve |
| HSP-HB (Blue) | HB-700 (1-7/8″ round) | OH-02 | Round spacer for round sleeve |
Need help matching spacers, drivers, and anchors for your project? Contact us and we’ll help you plan a clean, code-conscious install.
