Festool HSK-A Hand Sanding Block, 80mm x 130mm (578960)
Festool HSK-A Hand Sanding Block, 80mm x 130mm (578960)
Key Features
Overview
This is a hand sanding block designed for dust-extracted sanding in corners, edges, and narrow surfaces that a random orbital or belt sander can't get into cleanly. The Festool HSK-A Hand Sanding Block, 80x130 (item number 578960) is a purpose-built rectangular pad sized for 80x133mm abrasives and worked entirely by hand.
It replaces item number 496962 — this is the same hand sanding block, reissued under a new item number with no functional changes. The dust-extraction adapter with bypass suction control, the hard rectangular pad, and the compatibility with Festool 80x133mm abrasives all carry over exactly as before.
What earns it a spot on the truck is the built-in dust extraction. The integrated adapter connects directly to a Festool extraction hose, so you're not shaking dust off a sanding sheet or breathing it in while working a corner by hand. A bypass valve lets you back off suction when you want the abrasive to load more slowly on gummy paint or drywall compound, or open it up fully for dry sanding.
The block itself is shaped to sit comfortably in your hand through extended sanding sessions, and the backing has rounded edges so you're less likely to gouge or burnish the surface around the spot you're actually sanding.
It's compatible with Festool Granat, Rubin, and Granat Net abrasives cut to 80x133mm, and it ships with a starter set — two sheets each of Granat Net in 80, 120, and 180 grit — plus a protection pad and both the bypass adapter and the Festool hose adapter you need to hook it to an extractor.
This is the tool for finish carpenters, painters, and drywall finishers who need controlled, dust-free sanding in tight spots — door jambs, window returns, inside corners, ceiling transitions — where a powered sander is too big or too aggressive for the job.
Sand Clean Without an Extra Hand
The integrated adapter connects straight to a Festool extraction hose, so dust gets pulled away from the surface as you sand instead of settling on the workpiece or floating in the air.
- Connects directly to a Festool dust extractor — no separate hose adapter to hunt down
- Bypass valve fine-tunes suction for gummy compound versus dry, fine dust
- Keeps abrasive cleaner for longer, so sheets last through more passes
Built for Overhead and Detail Work
The block's shape is built to sit comfortably in your hand for extended sanding, including overhead work like smoothing drywall compound on ceiling seams and transitions.
- Ergonomic shape supports control during long, overhead sanding sessions
- Rounded backing edges help protect the surrounding surface from gouges
- Rectangular pad suits flat detail work like compound seams and trim faces
Reach the Corners Bigger Sanders Miss
Ceiling corners, inside angles, and narrow trim runs are where a random orbital sander is too wide and too aggressive — this block goes where the power tool can't.
- Compact rectangular pad fits into tight corners and narrow surfaces
- Sized specifically for 80x133mm abrasives, so replacement sheets are a known fit
- Fully hand-controlled for precise pressure on delicate finish surfaces
What's in the Box
- Festool HSK-A Hand Sanding Block, 80x130 (1)
- Bypass Adapter (1)
- Festool Hose Adapter (1)
- Granat 80x133 P80 Abrasive, Net (2)
- Granat 80x133 P120 Abrasive, Net (2)
- Granat 80x133 P180 Abrasive, Net (2)
- 80x133mm Protection Pad (1)
The block connects to a Festool dust extractor through the included hose adapter — the extractor itself is sold separately.
Key Specifications
 Abrasive Size |
3-1/8-in x 5-1/4-in (80mm x 133mm) |
|---|---|
|
Pad Style |
Hard rectangular, hand-held sanding block |
|
Dust Port (No Adapter) |
0.84-in (21.5mm) |
|
Dust Port (With Adapter) |
1-1/16-in (27mm) |
 Weight |
0.41 lbs (0.19 kg) |
 Made In |
Italy |
Compatibility
Built For
Pro Tip
If your abrasive is loading up fast on gummy paint or drywall compound, close the bypass down a notch — trading a little suction for less clogging keeps one sheet cutting longer before you have to swap it.
Tool Nut's Take
The Hand Block for the Spots Your Sander Can't Reach
The Festool HSK-A 80x130 is the block you keep in the case for corners, edges, and detail work — the sanding a random orbital sander will chew up if you let it near.
- Who it's for: Finish carpenters, painters, and drywall finishers who need controlled, dust-free hand sanding in tight spots.
- Why it stands out: Built-in dust extraction with an adjustable bypass, plus a comfortable, rounded block shape that protects the surrounding surface.
- Worth knowing: This replaces item number 496962 with no functional changes — same block, same adapter, same compatibility, just a new item number.
Common Questions
- What abrasive comes with it? Two sheets each of Granat Net in 80, 120, and 180 grit, plus an 80x133mm protection pad.
- What other abrasives can I use with it? Any Festool Granat, Rubin, or Granat Net abrasive cut to 80x133mm.
- Do I need a Festool dust extractor to use it? The included hose adapter is built to connect directly to a Festool extractor; the extractor itself is sold separately.
- Is this the same product as item number 496962? Yes — it replaces that item number with no functional changes.