DW8 Diamond Mounted Points
DW8 Diamond Mounted Points are small, precision grinding tools used for detailed shaping, finishing, and deburring of hard, brittle, or wear-resistant materials. This style is also used in internal grinding applications
DW8 Shape & Features
Shape: Typically a cylindrical or slightly radius-tipped point with a rounded end.
Mounting: Bonded diamond section fixed to a steel or carbide shank.
Shank Diameter: 0.062” – 0.500” depending on application.
Typical Applications
DW8 Diamond Mounted Points are used in:
Tool & die making – Finishing mold cavities.
Aerospace & automotive – Edge blending on turbine blades, ceramic seals.
Medical devices – Grinding hard alloys, ceramics, or zirconia.
Electronics – Machining sapphire, quartz, silicon.
Materials They Can Grind
Tungsten carbide
Technical ceramics (alumina, zirconia, silicon nitride)
Hardened steels (RC 60+)
Glass, quartz, sapphire
Stone, composite materials
DW8-style Diamond Mounted Points are typically used on precision grinding machines and hand-held rotary tools where small-diameter, high-accuracy internal or profile grinding is required. Here’s a breakdown of the grinder types that commonly use DW8 mounted points:
Grinders That Use DW8 Diamond Mounted Points
1. Jig Grinders
These are the most common machines for DW8 points.
Moore Jig Grinders
Hauser Jig Grinders
Mitsui Seiki Jig Grinders
DW8 points are ideal for finishing bores, pockets, and precision contours.
2. ID (Internal Diameter) Grinding Machines
Used for small-bore grinding with high concentricity.
Brands include:
Voumard
Bryant
Cincinnati
Okamoto IGM Series
Kellenberger ID Grinders
DW8 points excel for carbide, hardened steels, ceramics, quartz, and technical materials.
3. CNC Tool & Cutter Grinders
For precision form, relief, or flute work on carbide tools.
Examples:
Walter Helitronic
ANCA
Rollomatic
Schneeberger
DW8 shapes are used for small radii and form profiles inside tool features.
4. High-Speed Rotary Handpieces / Spindles
Used in toolrooms, mold shops, and optical labs.
Common setups:
NSK Nakanishi high-speed spindles (30,000–80,000 rpm)
Foredom
Suhner
Gesswein hand grinders
Great for delicate internal features and precise material removal.
5. Ultrasonic Grinders (when using small bonded points)
Some ultrasonic machining systems (e.g., Diprofil, Gesswein) accept small-diameter mounted points like DW8 for sapphire, ruby, ceramics, and glass.
Materials Commonly Ground with DW8 Mounted Points
Tungsten Carbide
Hardened Tool Steels
Ceramics (Alumina, Zirconia)
Sapphire, Quartz, Glass
Carbide dies, bushings, inserts
Precision mold components
EDM recast removal
Why DW8 Points Are Used
DW8 is a specific standardized geometry for mounted points, known for:
Tight tolerance OD grinding
Excellent form accuracy
Ability to reach small internal features
High-performance grinding on superhard materials
Compatibility with high-speed spindles and jig grinders
Call (480) 966-9311 or Add to Quote for pricing.
Specifications
(D) DIAMETER
0.026"
0.032
0.035
0.045
0.050
0.060
0.070
0.080
0.085
0.090
0.093
0.115
0.125
0.156
0.187
0.218
0.250
0.250
0.250
0.250
0.281
0.281
0.312
0.312
0.375
0.375
0.437
0.500
0.500
0.750
1.000
(A) LENGTH
0.093"
0.093"
0.093"
0.093"
0.093"
0.093"
0.093"
0.093"
0.093"
0.093"
0.093"
0.125"
0.156"
0.187"
0.218"
0.250"
0.250"
0.125"
0.250"
0.250"
0.125"
0.125"
0.125"
0.250"
0.312"
0.125"
0.375"
0.375"
0.500"
0.500"
0.500"
(S) SHANK DIAMETER
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.125"
0.187"
0.250"
0.125"
0.187"
0.187"
0.187"
0.187"
0.250"
0.250"
0.250"
0.250"
0.250"
0.250"
(L) OAL
1.500"
1.500"
1.500"
1.500"
1.500"
1.500"
1.500"
1.500"
1.500"
1.500"
1.500"
2.000"
2.000"
2.000"
2.000"
2.000"
2.000"
2.000"
2.000"
2.000"
2.500"
2.500"
2.500"
2.500"
2.500"
2.500"
2.500"
2.500"
2.500"
2.500"
2.500"
GRIT
200/230
200/230
200/230
200/230
200/230
200/230
200/230
200/230
200/230
170/200
170/200
170/200
140/170
140/170
140/170
140/170
140/170
140/170
140/170
140/170
140/170
140/170
140/170
140/170
140/170
100/120
100/120
100/120
100/120
100/120
100/120
(U) UNDERCUT
0.125"
0.125"
0.250"
0.250"
0.125"
0.250"
0.125"
0.125"
0.125"
0.125"
0.187"
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
(D) DIAMETER:
0.026"
(A) LENGTH:
0.093"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
1.500"
GRIT:
200/230
(U) UNDERCUT:
0.125"
(D) DIAMETER:
0.032
(A) LENGTH:
0.093"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
1.500"
GRIT:
200/230
(U) UNDERCUT:
0.125"
(D) DIAMETER:
0.035
(A) LENGTH:
0.093"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
1.500"
GRIT:
200/230
(U) UNDERCUT:
0.250"
(D) DIAMETER:
0.045
(A) LENGTH:
0.093"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
1.500"
GRIT:
200/230
(U) UNDERCUT:
0.250"
(D) DIAMETER:
0.050
(A) LENGTH:
0.093"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
1.500"
GRIT:
200/230
(U) UNDERCUT:
0.125"
(D) DIAMETER:
0.060
(A) LENGTH:
0.093"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
1.500"
GRIT:
200/230
(U) UNDERCUT:
0.250"
(D) DIAMETER:
0.070
(A) LENGTH:
0.093"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
1.500"
GRIT:
200/230
(U) UNDERCUT:
0.125"
(D) DIAMETER:
0.080
(A) LENGTH:
0.093"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
1.500"
GRIT:
200/230
(U) UNDERCUT:
0.125"
(D) DIAMETER:
0.085
(A) LENGTH:
0.093"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
1.500"
GRIT:
200/230
(U) UNDERCUT:
0.125"
(D) DIAMETER:
0.090
(A) LENGTH:
0.093"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
1.500"
GRIT:
170/200
(U) UNDERCUT:
0.125"
(D) DIAMETER:
0.093
(A) LENGTH:
0.093"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
1.500"
GRIT:
170/200
(U) UNDERCUT:
0.187"
(D) DIAMETER:
0.115
(A) LENGTH:
0.125"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
2.000"
GRIT:
170/200
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.125
(A) LENGTH:
0.156"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
2.000"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.156
(A) LENGTH:
0.187"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
2.000"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.187
(A) LENGTH:
0.218"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
2.000"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.218
(A) LENGTH:
0.250"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
2.000"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.250
(A) LENGTH:
0.250"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
2.000"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.250
(A) LENGTH:
0.125"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
2.000"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.250
(A) LENGTH:
0.250"
(S) SHANK DIAMETER:
0.187"
(L) OAL :
2.000"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.250
(A) LENGTH:
0.250"
(S) SHANK DIAMETER:
0.250"
(L) OAL :
2.000"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.281
(A) LENGTH:
0.125"
(S) SHANK DIAMETER:
0.125"
(L) OAL :
2.500"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.281
(A) LENGTH:
0.125"
(S) SHANK DIAMETER:
0.187"
(L) OAL :
2.500"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.312
(A) LENGTH:
0.125"
(S) SHANK DIAMETER:
0.187"
(L) OAL :
2.500"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.312
(A) LENGTH:
0.250"
(S) SHANK DIAMETER:
0.187"
(L) OAL :
2.500"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.375
(A) LENGTH:
0.312"
(S) SHANK DIAMETER:
0.187"
(L) OAL :
2.500"
GRIT:
140/170
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.375
(A) LENGTH:
0.125"
(S) SHANK DIAMETER:
0.250"
(L) OAL :
2.500"
GRIT:
100/120
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.437
(A) LENGTH:
0.375"
(S) SHANK DIAMETER:
0.250"
(L) OAL :
2.500"
GRIT:
100/120
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.500
(A) LENGTH:
0.375"
(S) SHANK DIAMETER:
0.250"
(L) OAL :
2.500"
GRIT:
100/120
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.500
(A) LENGTH:
0.500"
(S) SHANK DIAMETER:
0.250"
(L) OAL :
2.500"
GRIT:
100/120
(U) UNDERCUT:
N/A
(D) DIAMETER:
0.750
(A) LENGTH:
0.500"
(S) SHANK DIAMETER:
0.250"
(L) OAL :
2.500"
GRIT:
100/120
(U) UNDERCUT:
N/A
(D) DIAMETER:
1.000
(A) LENGTH:
0.500"
(S) SHANK DIAMETER:
0.250"
(L) OAL :
2.500"
GRIT:
100/120
(U) UNDERCUT:
N/A
