It is an ideal measuring instrument for simplifying inspection and precision measurement of diameter, forming tools, gauges as well as template checking of thread and angles.
STANDARD SPECIFICATIONS:
Total Maginfication :30x
Objective : 2x
Eyepiece: 15x
Working distance :65mm
Field of view : 6mm

Observation tube: Monocular inclined at 30° stand. Large and heavy base provides extra overall rigidity to the instrument.

Measuring Stage :150mm x 150mm assembled on ball bearing guides to provide accurate and smooth travel upto 50mm in each direction with the use of gauge blocks having micro-head standard 0-25 mm, least count 0.01 mm.

Rotary Stage : Circular stage is fitted on measuring stage, graduated into 360° with vernier and lock.

Eyepiece Protractor: Graduated in 360° with adjustable vernier reading to 6 Min. is coupled with monocular ocular tube for smooth angle measurement.

Illumination :
(i) Sub-stage lamp provides transmitted light from a bottom source providing colimated green filter Halogen light.
(ii)Oblique illuminator with adjustable inclination for surface illumination of sample with relief structure, is also provided. Three separate knobs for different illumination is provided with variable light control on the front panel.

Prod ID: BTM - 900

Large Toolmaker's Microscope provides extra overall rigidity to the instrument.
300 x 200 mm size stage assembled on ball bearing guides for accurate & smooth strokes.

Prod ID: BTM - 99

It is an ideal measuring instrument for simplifying inspection and precision measurement of diameter, forming tools, gauges as well as template checking of threads and angles. Specially recommended for Technical Institutions.
TECHNICAL SPECIFICATIONS:
Eyepieces: WF10x(withcross)H10x (with micrometer)& H 15x
Objectives : 1x - 3x - 5x
Filed of view: 10mm - 3.5mm - 2mm
Magnifications: 10x - 15x - 30x - 45x - 50x and 75x.

MEASURING STAGE: 125mm x 125mm with interchangeable intermediate table to receive different optional accessories. Equipped with micrometer head 0-25mm reading 0.01 mm, life long smooth movement is assured by the incorporation of hard steel rolling balls both in longitudinal and transverse slides. Rotary Measuring stage dia 130mm is mounted on the table with 55mm glass aperture, circular graduated scale is divided into 360' with both side vernier reading 5 minutes.

OBSERVATION TUBE: Monocular inclined at 45° fitted with Gonio-metric head graduated 360°.

ILLUMINATIONS : Two possible range of illuminating systems are provided with standard equipment to meet every application, operated through 6 volts solidstate variable light control built-in transformer.
(1) Sub-stage transmitted light from a bottom source providing collimated green filtered Halogen light for viewing contours and transparent objects.
(2)Surface incident illuminator for high power examination of opaque objects.

Prod ID: BTM-500

OPTIONAL ACCESSORIES FOR TOOLMAKER'S MICROSCOPE

CENTRE HOLDING DEVICE : With angular movement upto 10° on either side for checking angular measurement.
Prod ID: TM-4

V BLOCK :Set of 2 nos, with clamps size 24 x 16mm .
Prod ID: TM-5

VEE SUPPORT :With spring clamps for inspection of parts without centres or counter bores.
Prod ID: TM-6

PROJECTION ATTACHMENT : Comprising of a projection screen dia 90mm, to be placed on the viewing eyepiece, inclined at 30° for getting a sharp focussed image on the projection screen ready for measurement with a high intensity 6V 20W Halogen illumination system.
Prod ID: TM-7

Measuring Eye pieces with Reticies Prod ID: TM-8

Metric Coarse thread P, 0.25mm to 0.1 mm Prod ID: TM-8

Metric Coarse thread P, 1.25mrn to 2.00mm Prod ID: TM-9

Concentric 0.05mm - 4.0mm Prod ID: TM-10

55° degree angle Prod ID: TM-11

60° degree angle Prod ID: TM-12

Whitworth Thread 60-26 TPI Prod ID: TM-13

Whitworth Thread 24-18 TPI Prod ID: TM-14

ACCESSORIES FOR Model BTM-500

TWIN SPOTLIGHT OBLIQUE ILLUMINATION : With adjustable inclination for surface lighting of samples and relief structure can also be fitted as optional .
Prod ID: TM-1

DEPTHOSCOPE ATTACHMENT : Can be provided with the microscope. It is useful for depth measurement by optical means without physical contact with the specimen. Dial gauge mechanism is coupled with the fine focus control of the microscope.
Prod ID: TM-2

PROJECTION ATTACHMENT : Comprising of a projection screen dia 100mm to be placed directly at the place of vertical lamp. Screen at 90° having built-in eyepiece to give a sharp focussed projected image, for simultaneous observation through eyepiece and on projection screen.
Prod ID: TM-3

VIDEO COMPARATORS

TWIN VIDEO COMPARATION : The latest electronic approach to comparison microscope made it possible to use twin video comparator.

It is useful for comparative Studies in Forensic Criminal investigations and has indispensable applications for comparative inspection in Petrography, Mineralogy, Geology, Chemistry, Metallurgy & other Research fields.

A pair of Macro/Micro Viewers with fluorescence Fibre light coupled with Cameras having built in electronic CCD iris, Electronic Mixer, high resolution colour Monitor with superfine pitch and Video Printer for permanent colour prints of ultra high resolution images, Supplied complete set with necessary cables and printed illustrated operating manuals etc.
Prod ID: BCM-999

DIRECT VISION SPECTROSCOPE WITHOUT WAVE LENGTH SCALE : A complete and light weight direct vision spectroscope without wave length scale, for observing visible radiations from 400 to 750 mm.
Prod ID: BDV-1

DIRECT VISION SPECTROSCOPE WITH WAVE LENGTH SCALE : A compact visible spectrometer which allows the direct reading of spectral length and employs a prism for dispersion. It is also useful for flame test of basic radicals (sodium, strontium, potassium, copper etc.) There is a single eyepiece and independent focussing tube for the gratioule, which carries an index at 590 mm with "D", marked right below the scale, (corresponding to the wave length of sodium light) can be calibrated to a known light source by adjustment of knurled screw.The amout of light admitted to the spectroscope can be regulated by a variable slit, adjusted by a knurled ring round the rating tube.
Prod ID: BDV-2