DIATEST Split Ball Set M12

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Ultra-Fine Bore Measurement from Ø 1.50 – 9.80 mm

The M12 set is engineered for ultra-precise internal diameter measurements in micro-machining, watchmaking, and high-precision component inspection. It’s the ideal solution for professionals working with extremely small bores where accuracy is critical.

Key features

Measuring Range: Ø 1.50 – 9.80 mm
Probe Types Available:
- Standard T-Probes (DLC-coated)
- Blind Bore Probes (DLC-coated)
Accuracy: Exceptional repeatability and resolution
Application Type: Suitable for blind and through bore measurements
Consists of split ball probe sets M1 and M2

Applications

Precision bore measurement in production and inspection environments.
Ideal for use in:

Micro bore measurement
Watchmaking and fine mechanics
Medical device manufacturing
Aerospace micro-components

Order Codes

Measuring range mm	Standard DLC Coated	Standard Carbide Coated	Standard Ceramic Coated	Blind Bore DLC Coated
1.50 – 9.80	M12	M12-HM	N/A	M12-FB

Measuring range mm	Set of Setting rings	Wooden Box
01.50 – 9.80	RM12	ET-M12

1) A complete set contains: Wooden box with range chart (grooves left for setting rings), split-ball probes and needles, standard holder MH6-51 and wrench SW7-G.

2) Content of set: See setting rings standard nominal sizes.

Single Split Ball Probes

Measuring range mm	Single Order No.	Set No.	Steel Needle No.	Carbide Needle No.
1.50 – 1.90	T-1.75	M1	N1-100	NHM1-100
1.80 – 2.20	T-2.00		N1-100	NHM1-100
2.05 – 2.45	T-2.25		N1-100	NHM1-100
2.30 – 2.70	T-2.50		N1-150	NHM1-150
2.55 – 2.95	T-2.75		N1-150	NHM1-150
2.80 – 3.20	T-3.00		N1-150	NHM1-150
3.05 – 3.45	T-3.25		N1-150	NHM1-150
3.30 – 3.70	T3.50		N1-150	NHM1-150
3.55 – 3.95	T3.75		N1-150	NHM1-150
3.80 – 4.20	T-4.00/1		N1-150	NHM1-150

3.70 – 4.30	T-4.00	M2	N2-270	NHM2-270
4.20 – 4.80	T-4.50		N2-270	NHM2-270
4.70 – 5.30	T-5.00		N2-270	NHM2-270
5.20 – 5.80	T-5.50		N2-270	NHM2-270
5.70 – 6.30	T-6.00		N2-270	NHM2-270
6.20 – 6.80	T-6.50		N2-270	NHM2-270
6.70 – 7.30	T-7.00		N2-270	NHM2-270
7.20 – 7.80	T-7.50		N2-270	NHM2-270
7.70- – 8.30	T-8.00		N2-270	NHM2-270
8.20 – 8.80	T-8.50		N2-270	NHM2-270
8.70 – 9.30	T-9.00		N2-270	NHM2-270
9.20 – 9.80	T-9.50		N2-270	NHM2-270

Single Setting rings

Measuring range mm	Single Order No.	Set No.	Boxes No.
1.50 – 1.90	R-1.750	RM1	ET-M1
1.80 – 2.20	R-2.000
2.05 – 2.45	R-2.250
2.30 – 2.70	R-2.500
2.55 – 2.95	R-2.750
2.80 – 3.20	R-3.000
3.05 – 3.45	R-3.250
3.30 – 3.70	R-3.500
3.55 – 3.95	R-3.750

3.70 – 4.30	R-4.000	RM2	ET-M2
4.20 – 4.80	R-4.500
4.70 – 5.30	R-5.000
5.20 – 5.80	R-5.500
5.70 – 6.30	R-6.000
6.20 – 6.80	R-6.500
6.70 – 7.30	R-7.000
7.20 – 7.80	R7.500
7.70 – 8.30	R8.000
8.20 – 8.80	R8.500
8.70 – 9.30	R9.000
9.20 – 9.80	R9.500