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MasterGage MP-1 MasterPlate


List Price: $49.99
Price: $49.95 & FREE Shipping. Details
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  • The MasterPlate is a solid 6-by-10-by-1/4-Inch thick aluminum "tool makers" quality plate, ground flat to within thousandths of an Inch
  • The MasterPlate provides a full flat 10-Inch surface parallel to the miter slot and a vertical height of almost 7-Inch perpendicular to the table top
  • Fits both 5/8 and 1-Inch diameter arbor shafts
  • Set both miter and bevel angles on saws to within minutes of a Degree
  • Use the MasterPlate to calibrate and troubleshoot table saws, radial arm saws, chop saws and sliding compound miter saws
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3 new from $49.95 1 used from $37.36

Frequently Bought Together

MasterGage MP-1 MasterPlate + MasterGage SB-1 SuperBar, Part # 400-01 + Wixey WR300 Digital Angle Gauge
Price for all three: $145.39

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  • Buy Used and Save: Buy a Used "MasterGage MP-1 MasterPlate" and save 25% off the $49.99 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Product Information

Technical Details
Part Number G7582
Item Weight2.2 pounds
Product Dimensions10.9 x 8.6 x 1 inches
OriginUSA
California residentsClick here for Proposition 65 warning
Item model numberMP-1
Warranty DescriptionLifetime
  
Additional Information
ASINB00006RGLC
Best Sellers Rank #174,284 in Home Improvement (See top 100)
Shipping Weight2.2 pounds (View shipping rates and policies)
ShippingThis item is also available for shipping to select countries outside the U.S.
Date First AvailableSeptember 25, 2002
  
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Product Description

From the Manufacturer

For precise saw alignment, replace the saw blade with the MasterPlate. Saw blades are made for cutting - NOT for alignment and calibration. Not only could a saw blade be warped, it also has a limited measuring surface because of the carbide teeth, gullets, anti-noise slots and pitch build up. All these factors limit the saw blade as a set up tool. With the MasterPlate, you have a full 10-Inch flat surface to align parallel to the miter slot, versus about 5-Inch on a 10-Inch blade. Mount the MasterPlate in its vertical position, now you have almost 7-Inch of height to square to the table top, versus about 3-Inch for a 10-Inch saw blade. Set any miter or bevel angle accurately to within minutes of a Degree. Comes with complete instructions, plus free technical support from the manufacturer. For maximum results, use the SuperBar [SB-1] with the MasterPlate

Product Description

Align, calibrate and tune up your table saw to within +/- .001". this double disk ground aluminum late fits 5/8" and 1" arbors. Measuring 6" x 10", it's designed for squaring and aligning your saw blade to the table, and unlike saw blades, it has zero runout! Precisely measure any angle too!

Customer Questions & Answers

Customer Reviews

4.0 out of 5 stars
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See all 24 customer reviews
Very accurate tool.
Embedded Engineer
When using the Master Plate to tune up the cabinet saw, I found it to be much more accurate than using the saw blade.
Leon Baker
This product does what it's supposed to do, does it well, and was worth buying.
Mark Colan

Most Helpful Customer Reviews

23 of 23 people found the following review helpful By Mark Colan TOP 500 REVIEWERVINE VOICE on December 19, 2004
[Updated Jan 2, 2007: see end of review]

I found this tool nearly essential, but not cheap. You can get by on a shop-made alternative, such as metal that is thick enough not to flex, or masonite supported with glued strips of oak to keep it flat. Depending on your purposes, these may be sufficient. My goals were to improve the alignment of my Delta Contractor saw, which I have had for five years, and the MasterPlate (with MasterGage) really helped.

For checking that the blade is square with the table, it's much easier to use a machinist's square (or combination square) with a MasterPlate instead of the blade itself. I had adjusted the blade to 90 degrees using the blade and a machinist's square, but using MasterPlate, I found I was off by about a degree, and it was much faster to get it right.

For checking that the blade is parallel to the miter slot to avoid heeling, you may want better accuracy than is possible with the usual "pencil clamped to miter and check the same tooth front and back". If you plan to use a gauge like MasterGage (see my review of that product for more info), you should invest in MasterPlate, which is ground to be very flat.

You can also use the plate to square the miter gauge, and it can be used with a radial arm saw to square to the fence and to the table top surface. These are illustrated in the instructions. They say it can be used to tune up and align a Miter Saw, Chop Saw, Disk Sanding Machine, and Manual Miter Box, though they don't illustrate these uses.

This product does what it's supposed to do, does it well, and was worth buying. My table saw is far more accurate after tuning with MasterPlate and MasterGage than it was with "blade and pencil" alignment approach I tried before.
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14 of 14 people found the following review helpful By Alan Douse on February 12, 2005
I bought the MasterPlate simply to have a more accurate reference than a blade, or other "flat" material could provide, particularly in measuring and adjusting the tabletop to the blade using a miter slot. A quality saw blade can be assumed flat, however the effective horizontal measuring area of a 10" blade is maybe 7" at best, so you immediately gain about 45% more area and potential precision with the MasterPlate. Other non-machined materials simply have question marks regarding the precision of flatness, so unless you can prove that precision before you start, you're better off to go with a material that has a known precision with a stated tolerance. Speaking of tolerance, I found that the plate I received was within .002", with a very slight bow over its length. Certainly acceptable, but a bit more than I expected from the advertising. I spoke with MasterPlate and was informed that the flatness tolerance is within .003", and that the mention of precision of (1/1000) will likely be removed from future descriptions to avoid this confusion. I was told that they offer a 1/2" thick toolmaker version of the plate, accurate to within .0005", but the cost is 4 times that of the standard plate and unless you've got money to burn, completely uneccessary for this purpose.

The good news about the bow in my plate was that it could be measured and referenced simply by flopping the plate over and remeasuring. In my case, after adjusting the table, the measurement at the front and rear of the plate was nearly identical (less than .001"), with the center of the plate being plus or minus .002" depending on which face of the plate I was measuring.

I would recommend this product, and would have given it the full 5 stars had the precision been stated more clearly. For the money, it is doubtful that you will find a more accurate and flat piece of material.
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14 of 15 people found the following review helpful By J. Kloepping on December 29, 2003
I bought this tool with its companion, the MasterGage. While I can't recommend the MasterGage the MasterPlate is pretty basic and seems to be a high quality piece. It is simply a rectangular piece of steel plate that is machined flat, anodized and drilled for the arbor of a table saw.
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7 of 7 people found the following review helpful By Joe on April 29, 2013
Verified Purchase
Certainly don't depend on the MasterPlate for setting up your saw. I measured a .008" warp across the plate. To quote another reviewer, it is 'unflat'.

Putting this into perspective, Sawstop says to unbolt and realign the tabletop whenever the arbor is more than .003" out of adjustment. .008" misalignment will cause burned wood and poor fit.

I have added two of the pictures that I took of the MasterPlate 'unflat'-ness just after opening the package. The factory box was perfect, unblemished and undamaged; the Amazon box that the plate arrived in was undamaged; this problem wasn't a shipping issue. MasterPlate have stopped drilling the 1" hole and they also stopped anodizing the plate; the surface is now just plain rough milling.

O1 Tool Steel Sheet, Precision Ground, Annealed Temper, Standard Tolerance, Inch is my next reference plate.

UPDATE: BOO! FOUL!

Someone removed the photos showing exactly how 'un-flat' the April 2013 Masterplate is. I considered those as part of my review. I can post videos but not photos??? They were damning photos...

The photos showed two different _reference_ straight edges (Starrett 387-36 and Woodpecker SERX-36) placed diagonally across a new Masterplate. Under one edge was a .008" feeler gauge showing the Masterplate was not flat as specified in the literature. This is the proper way to quantify 'flatness'.

The photos also showed that the Masterplate no longer has an anodized surface, it has just a rough ground finish.

The photos also showed that the Masterplate no longer has support for a 1" arbor (my Makita miter saw has a 1" arbor and was one reason for me originally wanting a reference tool with the original specifications).
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