M3 Styli 0.2mm to 0.8mm Ball

Highly Spherical Ball Styli are the most common tips for use on CMMs with touch trigger probe systems. The sphericity of the ball and stiffness of the stem are critical for getting the most accurate measurements. The stylus is calibrated for exact diameter and then software compensation creates the measured point at the ball center instead of the surface in contact with the part.

The Styli on this page range from 0.2mm to 0.8mm. Most of these Tungsten Carbide stem that have the best stiffness to weight ratio. Longer stylus are available in Ceramic or Carbon fiber mainly to reduce the weight while maintaining the stiffness.

Ruby is the most common, very spherical, physically hard and durable ball material. Specialized materials like Silicon Nitride, Zirconia and even Diamond are used for specific materials measurement especially when physically scanning the material surface rather than taking discreet points.

Length Measurement to “End of Ball for” for ˂ 1mm Ball Diameters
Ball Material Designation (M):   R = Ruby, C= Carbide, Sn = Silicon Nitride, Zn = Zirconia, Dm = Diamond*
Stem Materials Include:   Steel, Tungsten Carbide, Ceramic and Carbon Fiber
Compare
Category:

0.2mm Ball Tungsten Carbide Stem
Ball (M): Carbide

Part NumberBall
Diam.
(D)
Overall
Length
(L1)
Step
Length
(L2)
EWL
Length
(L3)
Ruby
Ball
(R)
Carbide
Ball
(C)
M3 - 0.2 - 20 - (M)
Stepped Carbide Stem
Ref:
0.2mm
(.0079”)
20mm
(.787”)
15mm
(.591”)
1mm
(.039”)
NA$195

0.3mm Ball / Tungsten Carbide Stem
Ball (M): Ruby and Carbide

Part NumberBall
Diam.
(D)
Overall
Length
(L1)
EWL / Step
Length
(L2)
EWL
Length
(L3)
Ruby
Ball
(R)
Carbide
Ball
(C)
M2 - 0.3 - 10 - (M)
Stepped Carbide Stem
Ref: A-5000-7800
0.3mm
(.012”)
10mm
(.394”)
5mm
(.197”)
1.3mm
(.052”)
-$135
M3 - 0.3 - 15 - (M)
Stepped Carbide Stem
Ref: TM3-0315
0.3mm
(.012”)
15mm
(.591”)
10mm
(.394”)
1.3mm
(.052”)
-$135
M3 - 0.3 - 18 - (M)
Stepped Carbide Stem
Ref: TM3-0318
0.3mm
(.012”)
18mm
(.709”)
13mm
(.512”)
1.3mm
(.052”)
$132$135
M3 - 0.3 - 19 - (M)
Stepped Carbide Stem
Ref: TM3-0319
0.3mm
(.012”)
19mm
(.748”)
14mm
(.551”)
1.3mm
(.052”)
-$135
M3 - 0.3 - 20 - (M)
Stepped Carbide Stem
Ref: TM3-0320
0.3mm
(.012”)
20mm
(.787”)
15mm
(.591”)
1.3mm
(.052”)
-$135
M3 - 0.3 - 22 - (M)
Stepped Carbide Stem
Ref: TM3-0323
0.3mm
(.012”)
22mm
(.866”)
9mm
(.354”)
2.3mm
(.091)
$132

0.4mm Ball / Tungsten Carbide Stem
Ball (M): Ruby and Carbide

Part NumberBall
Diam.
(D)
Overall
Length
(L1)
EWL / Step
Length
(L2)
EWL
Length
(L3)
Ruby
Ball
(R)
Carbide
Ball
(C)
M3 - 0.4 - 10 - (M)
Stepped Carbide Stem
Ref: TM3-0410
0.4mm
(.016”)
10mm
(.394”)
5mm
(.197”)
2mm
(.079”)
-$125
M3 - 0.4 - 15 - (M)
Stepped Carbide Stem
Ref: TM3-0415
0.4mm
(.016”)
15mm
(.591”)
10mm
(.394”)
2mm
(0.79)
-$130
M3 -0.4 -18 –(M)
Stepped Carbide Stem
Ref: TM3-0418
0.4mm
(.016”)
18mm
(.709”)
13mm
(.512”)
2mm
(.079”)
-$130

0.5mm Ball / Tungsten Carbide Stem
Ball (M): Ruby, Carbide and Silicon Nitride

Part NumberBall
Diam.
(D)
Overall
Length
(L1)
Step
Length
(L2)
EWL
Length
(L3)
Ruby
Ball
(R)
Carbide
Ball
(C)
Silicon
Nitride
(SN)
M3 - 0.5 - 10 - (M)
Stepped Carbide Stem
Ref: TM3-0510
0.5mm
(.020”)
10mm
(.394”)
5mm
(.197”)
2.5mm
(.098”)
$108$108$148
M3 - 0.5 - 15 - (M)
Stepped Carbide Stem
Ref: TM3-0515
0.5mm
(.020”)
15mm
(.591”)
10mm
(.394”)
2.5mm
(.098”)
$108$108-
M3 - 0.5 - 18 - (M)
Stepped Carbide Stem
Ref: TM3-0518
0.5mm
(.020”)
18mm
(.709”)
13mm
(.512”)
2.5mm
(.098”)
$115$108$148
M3 - 0.5 - 20 - (M)
Stepped Carbide Stem
Ref: TM3-0520
0.5mm
(.020”)
20mm
(.787”)
15mm
(.591”)
2.5mm
(.098”)
-$108$148
M3 - 0.5 – 21.25 - (M)
Tapered Carbide Stem
Ref: A-5000-7362
0.5mm
(.020”)
21.25mm
(.837”)
-2.25mm
(.089)
$95--

0.6mm Ball / Tungsten Carbide Stem
Ball (M): Ruby and Carbide

Part NumberBall
Diam.
(D)
Overall
Length
(L1)
Step
Length
(L2)
EWL
Length
(L3)
Ruby
Ball
(R)
Carbide
Ball
(C)
Silicon
Nitride
(SN)
M3- 0.6 - 10 - (M)
Stepped Carbide Stem
Ref: TM3-0610
0.6mm
(.024”)
10mm
(.394”)
6mm
(.236”)
4.0mm
(.157”)
$94$125-
M3 - 0.6 - 15 - (M)
Stepped Carbide Stem
Ref: TM3-0615
0.6mm
(.024”)
15mm
(.591”)
11mm
(.433”)
4.0mm
(.157”)
$94$130-
M3 - 0.6 - 18 - (M)
Stepped Carbide Stem
Ref: TM3-0618
0.6mm
(.024”)
18mm
(.709”)
14mm
(.551”)
4.0mm
(.157”)
$94$130-
M3 - 0.6 - 20 - (M)
Stepped Carbide Stem
Ref: TM3-0620
0.6mm
(.024”)
20mm
(.787”)
16mm
(.63”)
4.0mm
(.157”)
$94$130-

0.7mm Ball Tungsten Carbide Stem

Part NumberBall
Diam.
(D)
Overall Length
(L1)
Step Length
(L2)
EWL
Length
(L3)
Ruby Ball
(R)
Carbide
Ball
(C)
Silicon Nitride
(SN)
M3 - 0.7 - 21 - (M)
Tapered Carbide Stem Ref: TM3-0721-04
0.7mm
(.020”)
21mm
(.827”)
17mm
(.669”)
4mm
(.157)
$107--

0.8mm Ball Tungsten Carbide Stem

Part NumberBall
Diam.
(D)
Overall
Length
(L1)
Step
Length
(L2)
EWL
Length
(L3)
Ruby
Ball
(R)
Carbide
Ball
(C)
Silicon
Nitride
(SN)
M3 - 0.8 - 12 - (M)
Stepped Carbide Stem
Ref:
0.8mm
(.031”)
12mm
(.472”)
8mm
(.315”)
4.0mm
(.157”)
$74-$104
M3 - 0.8 - 15 - (M)
Stepped Carbide Stem
Ref:
0.8mm
(.031”)
15mm
(.591”)
11mm
(.433”)
4.0mm
(.157”)
$74-$104
M3 - 0.8 - 20 - (M)
Stepped Carbide Stem
Ref:
0.8mm
(.031”)
20mm
(.787”)
16mm
(.63”)
4.0mm
(.157”)
$74-$104
M3 - 0.8 - 22 - (M)
Tapered Carbide Stem
Ref:
0.8mm
(.031”)
22mm
(.866”)
17mm
(.669”)
4.8mm
(0.189”)
$67--
M3 - 0.8 - 30 - (M)
Stepped Carbide Stem
Ref:
0.8mm
(.031”)
30mm
(1.18”)
26mm
(1.024”)
4.0mm
(.157”)
$80-$110