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A photo showcasing three Klingspor Sandflex Hand Blocks for cleaning and polishing, arranged side-by-side against a plain white background. From left to right, the rectangular boxes are color-coded by their grit level: * The first box on the left is bright yellow, indicating a **FINE** grit. It features the "sandflex" brand name in bold blue and white lettering, the Klingspor logo, and the text "Feel the Difference! HAND BLOCK CLEANING • POLISHING." A circular cutout reveals a smooth, dark gray abrasive block inside. * The center box is green, representing a **MEDIUM** grit. The layout is identical to the first, but with white text for "HAND BLOCK." The visible abrasive material in the circular window has a slightly more textured appearance than the fine block. * The final box on the right is a vibrant red for **COARSE** grit. Similar in design to the others, the circular cutout shows a noticeably rougher, pebbly dark gray texture. These flexible abrasive blocks are essential tools for maintaining metal equipment, frequently used to remove rust, sap, and stains from high-quality bonsai shears and other gardening tools without damaging the underlying metal.

SandFlex Cleaning Block

Price:
$5.95
SKU:
SPFLEX
Shipping:
Calculated at Checkout
Size: (Required)
No Extra Shipping charges for Add-ons if purchased now.
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We replace trees damaged in transit—no questions asked.

SandFlex Cleaning Block

Think of it like a rust eraser for your tools. Whether you need to shine up your shears, or just remove a bit of stubborn rust from a concave cutter, these rubberized abrasive blocks are just the thing.


They work on metal like an eraser works on paper. You can cut these block into smaller sizes with a knife to fit any shape. Use dry or with lubricant.


Because the grit is impregnated throughout the block, they last until the last little piece of block is gone; as they wear new grit becomes exposed.

Sand Block Features:

Dimensions: 3 x 2 x 1 inch
Model Number: SPFLEX-M

Dimensions: 3 x 2 x 1 inch
Model Number: SPFLEX-C

Dimensions: 3 x 2 x 1 inch
Model Number: SPFLEX-F

We ship thousands of bonsai trees and supplies each year, and every order is packed with care by our team. Live trees are watered, secured, and packaged to help them arrive safely and ready for their new home.

Live bonsai trees generally ship early in the week, Monday and Tuesday, to reduce time in transit. Tools, pots, soil, fertilizer, and other non-living items usually ship throughout the week.

Bonsai Outlet is a licensed nursery, not just a warehouse. We follow the proper inspection and certification requirements for shipping live plants across state lines. When a state requires additional documentation, such as a nematode certificate or nursery inspection certificate, we work to ensure the proper requirements are met before shipping.

For complete shipping and return details, please visit: Shipping & Returns

Shipping & Delivery Transparency

  • Shipping Timeline Estimate

    Orders ship Monday & Tuesday to ensure healthy delivery.

  • Cold Weather Considerations

    Dynamic messaging based on the user’s location (e.g., “Due to winter temperatures in your area, shipping may be delayed for tropical species.”)

  • Delivery Guarantee

    If your bonsai arrives damaged, we’ll replace it – hassle-free.

  • Local Pickup Option

    For customers within a certain radius.

Not All Bonsai Are Created Equal – Here’s Why We’re Different

Since 1987, we've been crafting premium bonsai trees,
curated by experts to thrive in your home.

  • Bonsai is all we do
    – since 1987
  • Developed, older trees
    with expert styling
  • Premium ceramic pot
    with drainage holes
  • High-quality,
    proper bonsai soil
Bonsai Tree
!