M3 All Stainless Stem Styli & 1.0 – 2.0 mm Ball Styli

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 first group of styli below are the only ones offered with a Stainless-Steel stem. They are the lowest cost stylus and are limited to 1mm ball and greater and maximum 30mm length. Following that are the 1mm, 1.5mm, 2mm and 2.5mm styli. Most of these Tungsten Carbide stems have the best stiffness to weight ratio. Longer styli 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 discrete points.

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

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Category:

M3 “Stainless Steel” Stem Styli 1mm – 6mm
Ball in Ruby, Silicon Nitride, Zirconia

Part Number(D)
Ball
Diameter
(L1)
Overall
Length
(L2)
EWL
Length
Ruby
Ball
(R)
Silicon
Nitride
(SN)
Zirconia
(Z)
M3- 1.0 - 21 -S- (M)
Straight Stainless Stem
Ref: A – 5000-3551
1.0mm
(.039”)
21mm
(.827”)
4mm
(.157”)
$30$60$60
M3 - 1.5 - 20.75 -S- (M)
Straight Stainless Stem
Ref:
1.5mm
(.059”)
20.75mm
(.817”)
4.7mm
(.185”)
$30$62$60
M3 - 2.0 - 22 – S- (M)
Straight Stainless Stem
Ref: A-5000-3552
2.0mm
(.079”)
22mm
(.866”)
9mm
(.354”)
$30$60$60
M3 - 3.0 – 22.5 – S - (M)
Straight Stainless Stem
Ref: A-5000-3553
3.0mm
(.118”)
22.5mm
(.886”)
12mm
(.472”)
$31$61$61
M3 - 4.0 - 23 - S- (M)
Straight Stainless Stem
Ref: A -5000-7606
4.0mm
(.157”)
23mm
(.906”)
14mm
(.551”)
$31$61$61
M3 - 4.0 - 33 - S- (M)
Straight Stainless Stem
Ref: A -5000-3554
4.0mm
(.157”)
33mm
(1.299”)
22mm
(.866”)
$31$61$61
M3 - 5.0 - 23.5 – S - (M)
Straight Stainless Stem
Ref: A-5000-7630
5.0mm
(.197”)
23.5mm
(.925”)
16mm
(.630”)
$32$62$62
M3- 5.0 - 33.5 – S - (M)
Straight Stainless Stem
Ref: A-5000-7648
5.0mm
(.197”)
33.5mm
(1.32”)
24mm
(.945”)
$31$61$61
M3 - 6.0 - 10 -S- (M)
Straight Stainless Stem
Ref: TM3 -6010
6.0mm
(.236”)
10mm
(.394”)
6mm
(.236”)
$45$75$75

M3 - 1.0mm Ball Tungsten Carbide Stem Styli
Ball (M): Ruby, Silicon Nitride & Zirconia

Part Number(D)
Ball
Diameter

(L1)
Overall
Length

(L2)
EWL / Step
Length

(L3)
EWL / Step
Length

Ruby
Ball
(R)
Silicon
Nitride
(SN)
Zirconia
(Z)
M3 - 1.0 - 10 - (M)
Straight Carbide Stem
Ref:
1.0mm
(.039”)
10mm
(.394”)
5mm
(.197”)
NA$50$80$80
M3 - 1.0 - 15 - (M)
Straight Carbide Stem
Ref:
1.0mm
(.039”)
15mm
(.591”)
10mm
(.394”)
NA$50$80$80
M3 - 1.0 - 20 - (M)
Stepped Carbide Stem
Ref:
20mm
(.787”)
20mm
(.787”)
15mm
(.591”)
NA$50$80$80
M3 - 1.0 - 25 - (M)
Stepped Carbide Stem
Ref:
1.0mm
(.039”)
25mm
(.984”)
17mm
(.787”)
5mm
(.197”)
$50$80$80
M3 - 1.0 - 30 - (M)
Stepped Carbide Stem
Ref:

1.0mm
(.039”)
30mm
(1.181”)
23mm
(.866”)
5mm
(.197”)
$55$85$85
M3 - 1.0 - 40 - (M)
Stepped Carbide Stem
Ref:

1.0mm
(.039”)
40mm
(1.575”)
33mm
(1.299”)
5mm
(.197”)
$60$90$90

M3 - 1.5mm Ball Tungsten Carbide Stem
Ball (M): Ruby, Silicon Nitride & Zirconia

Part Number(D)
Ball
Diameter
(L1)
Overall
Length

(L2)
EWL / Step
Length
(L3)
EWL / Step
Length

Ruby
Ball
(R)
Silicon
Nitride
(SN)
Zirconia
(Z)
M3 - 1.5 - 10 - (M)
Straight Carbide Stem
Ref:
1.5mm
(.059”)
10mm
(.394”)
5mm
(.197”)
NA$60$90$90
M3 - 1.5 - 20.75 - (M)
Straight Stem = Carbide
1.5mm
(.059”)
20.75mm
(.817”)
13.75mm
(.541”)
NA$43$73$73
M3 - 1.5 - 30.75 - (M)
Straight Carbide Stem
Ref:
1.5mm
(.059”)
30.75mm
(1.211”)
23.75mm
(.935”)
NA$48$78$78

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

M3 - 2.0mm Ball Tungsten Carbide Stem
Ball (M): Ruby, Silicon Nitride & Zirconia

Part Number(D)
Ball
Diameter
(L1)
Overall
Length
(L2)
EWL / Step
Length
Ruby
Ball
(R)
Silicon
Nitride
(SN)
Zirconia
(Z)
M3 – 2.0 - 10 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
10mm
(.394”)
5mm
(.197”)
$35$65$65
M3 – 2.0 - 15 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
15mm
(.591”)
10mm
(.394”)
$35$65$65
M3 – 2.0 - 20 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
20mm
(.787”)
15mm
(.591”)
$35$65$65
M3 – 2.0 - 21 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
21mm
(.827”)
15mm
(.591”)
$35$65$65
M3 – 2.0 - 25 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
25mm
(.984”)
18mm
(.709”)
$39$69$69
M3 – 2.0 - 30 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
30mm
(1.181”)
23mm
(.906”)
$43$73$73
M3 – 2.0 - 31 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
31mm
(1.22”)
24mm
(.945”)
$43$73$73
M3 – 2.0 - 35 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
35mm
(1.378”)
28mm
(1.102”)
$43$73$73
M3 – 2.0 - 40 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
40mm
(1.575”)
33mm
(1.299”)
$48$78$78
M3 – 2.0 - 41 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
41mm
(1.614”)
34mm
(1.339”)
$45$75$75
M3 – 2.0 - 50 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
50mm
(1.969”)
43mm
(1.693”)
$48$78$78
M3 – 2.0 - 51 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
51mm
(2.008”)
44mm
(1.732”)
$48$78$78
M3 – 2.0 - 70 - (M)
Straight Carbide Stem
Ref:
2.0mm
(.059”)
70mm
(2.756”)
63mm
(2.48”)
$55$85$85
M3 – 2.0 - 100 - (M
Straight Carbide Stem
Ref:
2.0mm
(.059”)
100mm
(3.937”)
93mm
(3.661”)
$65$95$95

M2 - 2.5mm Ball Tungsten Carbide Stem
Ball (M): Ruby, Silicon Nitride & Zirconia

Part Number(D)
Ball
Diameter
(L1)
Overall
Length
(L2)
EWL /Step
Length
Ruby
Ball
(R)
Silicon
Nitride
(SN)
Zirconia
(Z)
M3 – 2.5 - 20 - (M)
Straight Carbide Stem
Ref: TM2 -2520
2.5mm
(.098”)
20mm
(.787”)
15mm
(.591”)
$42$72$72
M3 – 2.5 – 31.25 - (M)
Straight Carbide Stem
Ref: A-5003-0038
2.5mm
(.098”)
31.25mm
(1.23”)
24mm
(.945”)
$43$73$73
M3 – 2.5 – 41.25 - (M)
Straight Carbide Stem
Ref: A -5003-0039
2.5mm
(.098”)
41.25mm
(1.624”)
34mm
(1.339”)
$48$78$78
M3 – 2.5 - 50 - (M)
Straight Carbide Stem
Ref: TM2 -2550
2.5mm
(.098”)
50mm
(1.969”)
43mm
(1.693”)
$50$80$80
M3 – 2.5 - 72 - (M)
Straight Carbide Stem
Ref:
2.5mm
(.098”)
72mm
(2.835”)
65mm
(2.56”)
$60$90$90