

Hamilton Lichfield manufacture a wide range of Single Point Dressing (S.P.D.) tools to suit every possible application and compliment this by offering a rapid resetting service for used Dressers. The diamonds used fall into one of two quality bands, General (G) and Precision (P). A General quality diamond will have points which are slightly more rounded than those on Precision quality stones. They may also contain flaws or defects although these will be away from the dressing point. 'G' quality Dressers are suitable for almost all workshop use, 'P' quality Dressers need only be specified when a very sharp point is required for fine dressing.
The two quality bands are further sub-divided according to the number of available setting points a stone may have; for example: a 'G3' Dresser will be a general quality dressing tool with 2 points available for reset plus the original point when the tool is supplied new.
|
Price Per Tool |
Weight |
G-5 |
G-4 |
G-3 |
G-2 |
G-1 |
|
0.25 |
G5-025 |
G4-025 |
G3-025 |
G2-025 |
G1-025 |
|
|
0.35 |
G5-035 |
G4-035 |
G3-035 |
G2-035 |
G1-035 |
|
|
0.50 |
G5-050 |
G4-050 |
G3-050 |
G2-050 |
G1-050 |
|
|
0.75 |
G5-075 |
G4-075 |
G3-075 |
G2-075 |
G1-075 |
|
|
1.00 |
G5-100 |
G4-100 |
G3-100 |
G2-100 |
G1-100 |
|
|
Price Per Carat |
1.05-1.50 |
G5-125 |
G4-125 |
G3-125 |
G2-125 |
G1-125 |
|
1.55-2.00 |
G5-175 |
G4-175 |
G3-175 |
G2-175 |
G1-175 |
|
|
2.05-2.50 |
G5-225 |
G4-225 |
G3-225 |
G2-225 |
G1-225 |
|
|
2.55-3.00 |
G5-275 |
G4-275 |
G3-275 |
G2-275 |
G1-275 |
|
|
3.05-3.50 |
G5-325 |
G4-325 |
G3-325 |
G2-325 |
G1-325 |
|
|
3.55-4.00 |
G5-375 |
G4-375 |
G3-375 |
G2-375 |
G1-375 |
|
|
4.05-5.00 |
G5-450 |
G4-450 |
G3-450 |
G2-450 |
G1-450 |
|
|
5.05-6.00 |
G5-550 |
G4-550 |
G3-550 |
G2-550 |
G1-550 |
|
Price Per Tool |
Weight |
P-5 |
P-4 |
P-3 |
P-2 |
P-1 |
|
0.25 |
P5-025 |
P4-025 |
P3-025 |
P2-025 |
P1-025 |
|
|
0.35 |
P5-035 |
P4-035 |
P3-035 |
P2-035 |
P1-035 |
|
|
0.50 |
P5-050 |
P4-050 |
P3-050 |
P2-050 |
P1-050 |
|
|
0.75 |
P5-075 |
P4-075 |
P3-075 |
P2-075 |
P1-075 |
|
|
1.00 |
P5-100 |
P4-100 |
P3-100 |
P2-100 |
P1-100 |
|
|
Price Per Carat |
1.05-1.50 |
P5-125 |
P4-125 |
P3-125 |
P2-125 |
P1-125 |
|
1.55-2.00 |
P5-175 |
P4-175 |
P3-175 |
P2-175 |
P1-175 |
|
|
2.05-2.50 |
P5-225 |
P4-225 |
P3-225 |
P2-225 |
P1-225 |
|
|
2.55-3.00 |
P5-275 |
P4-275 |
P3-275 |
P2-275 |
P1-275 |
|
|
3.05-3.50 |
P5-325 |
P4-325 |
P3-325 |
P2-325 |
P1-325 |
|
|
3.55-4.00 |
P5-375 |
P4-375 |
P3-375 |
P2-375 |
P1-375 |
|
|
4.05-5.00 |
P5-450 |
P4-450 |
P3-450 |
P2-450 |
P1-450 |
|
|
5.05-6.00 |
P5-550 |
P4-550 |
P3-550 |
P2-550 |
P1-550 |
Apart from the diamond quality and weight we also need the dimensions of the finished tool. The sketches below show the most common types of S.P.D. tool shanks. You can use the information shown to order tools. If the shank required is not shown please telephone to discuss your requirements - any style of shank can be produced.

Order Example:-
To order a 1.0 carat G quality tool with 3 points (2 resets) with straight shank 12mm diameter 50mm long; order as follows:
1 off - S.P.D Tool. Product code G3-100. Straight Shank 'D' dia. 12mm 'L' 50mm.
Hamilton Lichfield also manufacture a range of TSP (Thermally Stable Polycrystalline diamond) dressers which are particularly useful for the softer Aluminium Oxide wheels (J,K,L hardness). These dressers work on the constant contact area principle, unlike the conventional tool, and rely on the polycrystalline nature of the material to provide a continual supply of new micro dressing points.
In practice and under the correct conditions, these dressers are extremely economical and have the virtue of consistent repeatability, being a man-made material. Whereas natural diamonds are specified by weight, having regard to the wheel size to be dressed, TSP tools are matched to the wheel by cross-sectional area.
Currently, three sizes of TSP dressers are offered, as listed in the table below, but for larger wheels and applications such as angle head grinding, TSP diamonds may be incorporated in a variety of patterns in many styles of blade cluster tools.
We are always happy to provide advice and trial tooling for likely applications for these tools.
|
|
|
|
|
TSP1 |
0.8 * 0.8 mm |
5mm |
|
TSP2 |
1.1*1.1 mm |
5mm |
|
TSP3 |
1.5 * 1.5 mm |
5mm |

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Last updated: 17 April 1999 |
Webmaster: ViviNet |