Product Description
OZ-Post® HSP-I3 Brown Hammer-Spacer — Centers OH-01 Driver in I3-850 Ornamental Anchors
- Keep the Driver Centered — Slides over the OH-01 Oz-Hammer to keep impacts centered inside the I3-850 3″ square sleeve for smoother, straighter installs
- Cleaner, Faster Driving — Reduces wobble and bounce when jackhammer-driving I3-850 anchors, helping maintain plumb
- Steel, Powder-Coated Tool — Durable, reusable spacer; color-coded Brown for quick identification in the field
- Purpose-Built Fit — Bridges the gap between the 2″-dia. OH-01 driver and the 3″ I.D. I3-850 sleeve
The OZ-Post HSP-I3 Hammer-Spacer is the simple add-on that makes jackhammer installs of I3-850 (3″ square) ornamental anchors go smoothly. By centering the OH-01 driver inside the I3-850’s sleeve, the spacer delivers square, controlled blows, reducing chatter and helping you keep anchors plumb as you drive. Built from steel and powder-coated for durability, the Brown color makes it easy to grab the right spacer fast on site. Manufacturer notes: I3-850 sleeve I.D. is 3″; OH-01 driver is 2″—use HSP-I3 to keep the driver centered.
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 powder-coat finish
Specifications
| Model / Item # | HSP-I3 Hammer-Spacer — Item 40600 |
| Fits Anchor | I3-850 (for 3″ × 3″ square posts) |
| Used With Driver | OH-01 Oz-Hammer jackhammer driver bit (2″ Ø) |
| Spacer Color | Brown (color-coded for 3″ I-Series) |
| Material / Finish | Steel, powder-coated |
| Typical Usage | Centering the OH-01 driver when jackhammer-driving I3-850 anchors (also referenced for MDK/JDK installs) |
Installation
Attach the OH-01 driver to your jackhammer. Slide the HSP-I3 spacer onto the OH-01. Position the driver/spacer stack into the I3-850 sleeve and drive the anchor to grade (leave ~3/4″ of sleeve exposed for hardware). The spacer keeps the driver centered to help prevent chatter and sleeve damage. Check plumb as you go, and secure the post per your fence system’s instructions.
Resources: Manufacturer’s Warranty
Buying Guide
- Anchor match: Use HSP-I3 only with I3-850 (3″). For 2-1/2″ posts, see HSP-I25.
- Driver kits: For multi-post runs, 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 I3-850?
- The anchor sleeve is larger than the driver bit. The spacer fills that gap so strikes stay centered and controlled.
- Does HSP-I3 work with OH-02?
- No. OH-02 is for round anchors; HSP-I3 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-I3 (Brown) — this item | I3-850 (3″ square) | OH-01 | Centers 2″ driver in 3″ sleeve |
| HSP-I25 (White) | I25-850 (2-1/2″ square) | OH-01 | Centers driver in 2-1/2″ 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.
