DITRON 805B Digital Depth Calipers | 150mm to 300mm Depth and Step Measurement Malaysia
Choosing a Digital Depth Caliper for Holes, Recesses and Steps
The DITRON 805B Digital Depth Caliper measures depth and step height from a reference surface. The catalogue identifies screw holes, mould holes and workpiece holes as typical applications.
Three models cover 0-150mm, 0-200mm and 0-300mm. All provide 0.01mm / 0.0005in resolution and a 100mm base dimension.
For machining workshops, mould makers and maintenance teams in Malaysia, selection should consider the required depth, opening clearance, reference surface and drawing tolerance.
KEY FEATURES
Digital Display
The numerical display provides a direct reading of probe position relative to the reference base.
100mm Reference Base
All three models have a listed base dimension a of 100mm. The base spans the opening and rests on the selected reference surface during measurement.
Stable seating is essential. A wide base cannot compensate for burrs, uneven surfaces or insufficient support.
Flat Measuring End
The illustrated measuring blade provides a flat contact arrangement for suitable depth and step checks. Confirm that the blade can enter the opening and contact the intended surface.
Automatic Power Functions
The catalogue specifies switch-on when sliding and automatic switch-off after five minutes of inactivity.
Plastic Housing and Stainless Steel Ruler
The instrument has a plastic housing and a 4Cr13 stainless steel ruler, as listed in the catalogue.
CR2032 Battery
The specified power source is a CR2032 3V battery. Battery life is not quantified on the supplied page.
MODEL SPECIFICATIONS
Model: 805B-150
Measuring range: 0-150mm
Resolution: 0.01mm / 0.0005in
Accuracy: ±0.02mm
Base dimension a: 100mm
Ruler dimension e: 16mm
Model: 805B-200
Measuring range: 0-200mm
Resolution: 0.01mm / 0.0005in
Accuracy: ±0.03mm
Base dimension a: 100mm
Ruler dimension e: 16mm
Model: 805B-300
Measuring range: 0-300mm
Resolution: 0.01mm / 0.0005in
Accuracy: ±0.04mm
Base dimension a: 100mm
Ruler dimension e: 16mm
The dimensions a and e refer to the manufacturer’s drawing. These specifications reproduce the supplied DITRON catalogue table.
WHICH RANGE SHOULD YOU CHOOSE?
805B-150 for Depths Within 150mm
Choose this model when the required depth falls within 150mm and the contact geometry suits the feature.
It has the best listed accuracy of the three models at ±0.02mm.
805B-200 for Additional Reach
The 805B-200 extends the measuring capacity to 200mm, with a listed accuracy of ±0.03mm.
805B-300 for Deeper Features
The 805B-300 provides up to 300mm of measuring range, with a listed accuracy of ±0.04mm.
A longer range increases reach but does not guarantee access. The opening must accommodate the measuring blade, and the base must seat properly.
RESOLUTION IS DIFFERENT FROM ACCURACY
All three models display in 0.01mm increments. Their stated accuracy varies from ±0.02mm to ±0.04mm.
A 0.01mm reading increment should not be described as ±0.01mm accuracy.
The complete measurement also depends on base seating, blade alignment, contact location, cleanliness and reference verification.
TYPICAL APPLICATIONS
Machined Hole Depth Checks
Measure accessible hole depths where the blade can reach the required surface.
For drilled holes, distinguish the depth to the drill point from the depth of the full-diameter cylindrical section. The contact position determines what is being measured.
Mould Recess Inspection
Check suitable recess depths where the base can rest on a clear reference surface.
Step Height Measurement
Measure the difference between accessible levels using the appropriate base and probe arrangement.
Maintenance and Component Comparison
Compare recesses, shoulders and other depth features against drawings or replacement components.
These applications are relevant to engineering workshops in Selangor, Penang, Johor and other industrial areas in Malaysia.
CHECK ACCESS BEFORE ORDERING
Opening Size
Confirm the opening width and shape against the complete blade profile. The listed 16mm ruler dimension alone does not define the minimum compatible hole size.
Reference Surface
Check whether enough flat material surrounds the opening to support the base without rocking.
Bottom Geometry
A flat bottom, sloping surface and curved recess produce different contact conditions. Identify the exact surface that defines the required depth.
Obstructions
Threads, shoulders, debris and internal steps can prevent the measuring end from reaching the intended location.
BASIC MEASUREMENT WORKFLOW
1. Clean the base, blade and workpiece.
Remove chips, dirt and residue from the reference and contact surfaces.
2. Check the reference.
Follow the manufacturer’s procedure to verify zero against a suitable flat reference.
3. Seat the base.
Place the base firmly on the intended datum surface without rocking or bridging over burrs.
4. Advance the blade gently.
Bring the measuring end into contact with the target surface. Avoid excessive force.
5. Check alignment.
Keep the measuring direction appropriate to the depth being checked. Tilting can change the reading.
6. Read and repeat.
Record the measurement, then reposition the instrument to assess consistency.
COMMON CAUSES OF INCONSISTENT READINGS
A base resting on chips or burrs.
Rocking on an uneven reference surface.
The blade contacting a thread or shoulder.
Different contact positions on a sloping hole bottom.
Excessive force or instrument tilt.
An incorrect reference setting.
Resolve these setup issues before using the result for acceptance decisions.
CARE AND ROUTINE CHECKING
Protect the base and measuring end from impact. Keep the sliding surfaces clean and avoid forcing the blade through a restricted opening.
If readings remain inconsistent after checking the setup, verify against a suitable reference and assess whether inspection or calibration is required.
The supplied page does not specify an IP rating, data output or included calibration documentation. Confirm any required accessories and documentation when requesting a quotation.
FREQUENTLY ASKED QUESTIONS
What does the DITRON 805B measure?
It measures suitable hole depths, recess depths and step heights relative to a reference surface.
Which ranges are available?
The catalogue lists 0-150mm, 0-200mm and 0-300mm models.
What is the resolution?
All three models have 0.01mm / 0.0005in resolution.
How wide is the base?
The listed base dimension a is 100mm for all three models.
What battery does it use?
A CR2032 3V battery is specified.
Does it switch off automatically?
Yes. The catalogue states automatic switch-off after five minutes of inactivity and switch-on when sliding.
Can it measure every screw hole?
No. Suitability depends on opening clearance, threads, blade access and the required bottom contact.
What information helps with selection?
Provide the maximum depth, opening dimensions, bottom geometry, available reference surface and required tolerance.
SEO META DESCRIPTION
Explore DITRON 805B digital depth calipers in Malaysia. Compare 150-300mm ranges, 0.01mm resolution, a 100mm base and depth or step applications.
CONTACT MTM PRECISION
Contact MTM Precision with your required depth, opening dimensions and inspection tolerance for assistance selecting a DITRON 805B Digital Depth Caliper.
MTM Precision Sdn Bhd
Showroom & Service Centre: No. 29-1 & 29-2, Jalan Bandar 18, Pusat Bandar Puchong, 47160 Puchong, Selangor, Malaysia
Tel: 03-8080 7172
WhatsApp: +6016-660 7346
Email: mtmpre@yahoo.com
Website: www.mtmpre.com.my
25 Oct 2026
