Serving sailors online since 1997
Hunter OEM Parts
General Marine Parts

Hookit 5" Firm Dust Free Disc Pad

Pad #50203 for Bosch Sanders Only

For use with pre-punched Hookit Dust-Free Discs to facilitate dust evacuation.
Note that this older "dust free" hole pattern is different than the "Clean Sanding" hole pattern, which has many more dust extraction holes.
This pad is lightweight, durable, and well-balanced.
Fits Bosch 3107DVS (drive washer included in package, use attachment bolt supplied with the sander).
4-13/16" x 1/2", 7 mm bolt hole
5 per case
Sold by the each
Heavy on the technical side...
Should you use a soft or firm sanding disc backing pad?
After you have decided between Stikit or Hookit, and chosen no-hole or clean sanding discs, and selected the disc diameter, you will still often be left with the choice of a firm or a soft backing pad.
As a general rule, you should use coarser abrasive discs on firm backing pads, and finer grit discs on soft backing pads.
Soft Backing Pads
The advantage of a soft pad is that its surface can flex to some extent, conforming to the shape of the surface being sanded.
This facilitates higher surface contact, more consistent material removal, and less gouging.
Soft pads are not intended for use with very coarse abrasive discs for heavy duty work, as the higher stresses induced by very coarse abrasives fatigues the foam prematurely.
Having said that, a soft pad can be used with coarse grit discs for heavy material removal on rounded surfaces - like a sailboat hull - where it would be difficult to maintain full surface contact with a stiffer, firm backing pad.
Just don't expect the soft pad to last as long.
Firm Backing Pads
Using coarse discs on a firm backing pad works very well, as long as the work surface is flat.
Using a firm pad on a curved surface can easily result in hard-to-remove gouges and scratch marks.
If the surface isn't flat - again, like a sailboat hull - you will generally want to use a softer pad for full surface contact, no matter what the grit of the sanding disc.
Firm pads are also recommended for leveling uneven surfaces - such as paint brush strokes and runs.
In this application, a soft pad might simply conform to raised areas, rather than cutting them down.
Leaves warehouse: Next business day
(if in stock)

Shipping time: see chart

Made to order: No

zoom image

Current inventory as of Saturday, 12:30 pm Pacific time
Item Our SKU
Mfg P/N
Specs Status Price Quantity
5 in. Hookit Firm Dust Free Disc Pad - Bolt-On (Bosch Only)

SKU 178980

Mfg p/n 051111-50203
# Holes: 5
Diameter: 5"
Edge Bevel:
Face Color: Black
Foam Color: Black
Foam Density: Firm
Hook Type:
Max. RPM: 12,000 rpm
Per Case: 5
Thickness: 1/2"
Thread Size: N/A
Out of Stock$24.22

Positive SSL