Products \ Machine Tool Probe \ OTS

OTS contact laser tool setter





For broken tool detection and rapid tool length/diameter measurement use the OTS, Renishaw's first tool setting probe with optical transmission. The robust, compact and cable-free design allows freedom of table movement, ideal for twin pallet or rotary table machines.

The OTS is available in two versions, one with 1/2 AA batteries and the other with AA batteries. This allows the use of the same battery type in the OTS as the spindle probe.

OMI-2TThe OTS uses the OMI-2T optical interface for twin probing (or single probe use) and the OMI-2 for single installations only.

OTS features and benefits

  • Optical tool setting probe - no cables
  • Compact table mounting, ideal for twin pallet or rotary table machines
  • Precise tool length and diameter measurement
  • Automated updating of tool offsets
OTS specification
Sense directions ±X, ±Y, +Z 

1/2 AA



450 g (16 oz)

490 g (18 oz)

Transmission type Infra-red optical transmission
Uni-directional repeatability
(max 2 sigma at stylus tip) 
1.0 µm (0.00004 in)
Trigger force

Lowest force

Highest force


1.3 N (4.6 ozf)

2.4 N (8.5 ozf)

Stylus overtravel

XY plane

+Z direction


±3.5 mm (0.14 in)

6 mm (0.23 in)

Sealing IP X8
Mounting 12.7/10 mm (0.5/0.39 in) caphead bolt (not supplied).

Optional spiral pins to allow accurate re-mounting.

Compatible interface OMI-2T/OMI-2

Software for OTS

Renishaw tool setting software allows you to set tool length and diameter offsets for single point and multiple point tools, perform in cycle broken tool detection and manual or automatic updates.


Data sheet

Marketing literature

Installation guide

Quick start guide