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Dog River ToolsShrinking Disc 4 ½ Inch – Sheet Metal Fabrication Tool – Auto Body Panel Repair, Smoothing, Grinder

Q: Does this come with the backing plate and nut?

No backing plate or nut included. Just the disc as seen in the pictures

Q: Is there a specific rpm it should be used at ?

Most people just us this on their 4.5" angle grinder which don't typically have speed control. The ideal RPM is probably lower than that, but is you are careful to not build up to much heat the 4.5" angle grinders work well. 10-12k is the typical RPM advertised by grinders. Thanks, Pat

Q: How to use shrinking disc

The disk works on the principle Of heating the high spot(s) by friction. Imagine waves on a lake from wind. Light or heavy. When the disk is in contact with the high spots it heats them up ONLY! But you have to keep the disk moving around. Just a short time. Say 30-40 seconds. Then move it away and cool the high area with a wet rag or a spray bottle of water. This causes the high area to contract. Repeat the process until the area is back flat or at the needed contour. DO NOT Place the disk on wet metal!! Only use it on CLEAN metal surfaces! If you over shrink it bump it back high and do it again. The disk isn’t like a torch. As it only heats fb the high spots. A torch heats the high and lows and over use of hammer and dolly’s Will only creat metal fatigue. Wear gloves and hearing protection.

4.4/5

Product ID: 392001285

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Details

Grit Material
Alloy Steel
Product Dimensions
4.5"L x 4.5"W
Brand
Dog River
Compatible Devices
Angle Grinder
Grit Type
Medium

Frequently Bought Together

Dog River Tools Shrinking Disc 4 ½ Inch – Sheet Metal Fabrication Tool – Auto Body Panel Repair, Smoothing, Grinder

Seymour 620-1558 Toolmaker's Blue Layout Ink

Dykem 80300 Steel Blue Layout Fluid, Brush-in-Cap (4oz)

Description

Dog River ToolsShrinking Disc 4 ½ Inch – Sheet Metal Fabrication Tool – Auto Body Panel Repair, Smoothing, Grinder

Specifications

Product Dimensions	4.5"L x 4.5"W
Brand	Dog River Tools
Compatible Devices	Angle Grinder
Grit Number	60
Construction Type	Coated
UPC	850011570029
Manufacturer	Dog River Tools
Item Weight	5.4 ounces
Item model number	DRT-SD450
Manufacturer Part Number	DRT-SD450
Special Features	heavy-duty, lightweight

Have a Question? See What Others Asked

Does this come with the backing plate and nut?

Does anyone know what type or brand of backing plate to use with this disc?

Is there a specific rpm it should be used at ?

How to use shrinking disc

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