DITRON 805C vs 805D Digital Hook Depth Calipers | Groove and Step Measurement Malaysia
DITRON 805C AND 805D DIGITAL HOOK DEPTH CALIPERS IN MALAYSIA
Measuring a recessed shoulder or groove requires a contact that can reach the intended surface while the reference base remains properly seated.
The DITRON 805C Digital Depth Caliper with Single Hook and 805D Digital Depth Caliper with Double Hook provide two different contact arrangements for these applications.
The catalogue describes the 805C for groove, depth and width measurements, and the 805D for depth and step measurements. Both series offer digital readings, zero-setting at any position, and millimetre/inch conversion.
MTM Precision Sdn Bhd welcomes enquiries from machining workshops, toolrooms, fabrication companies and quality inspection teams in Malaysia.
WHAT IS THE DIFFERENCE BETWEEN DITRON 805C AND 805D?
DITRON 805C: Single-hook contact
The 805C features a single hook at the measuring end. This arrangement is intended for accessing groove and recessed contact surfaces where the hook can engage the required feature.
Its catalogue measuring ranges start at 2mm:
2-150mm
2-200mm
2-300mm
The minimum range matters. Do not specify the 805C as a 0-150mm, 0-200mm or 0-300mm instrument.
DITRON 805D: Double-hook contact
The 805D features a double-hook measuring end and is described for depth and step measurements.
Its catalogue measuring ranges are:
0-150mm
0-200mm
0-300mm
The double-hook geometry provides a different contact arrangement from the 805C. Selection should follow the component drawing and intended measuring surface.
Neither design is automatically suitable for every internal groove. Opening size, hook clearance, reference support and access to the contact surface all affect suitability.
DITRON 805C SINGLE-HOOK SPECIFICATIONS
All dimensions below are in millimetres.
Model: 805C-150
Measuring range: 2-150mm
Catalogue accuracy: 卤0.03mm
L: 230mm
a: 100mm
b: 5mm
c: 2mm
d: 14.5mm
Model: 805C-200
Measuring range: 2-200mm
Catalogue accuracy: 卤0.03mm
L: 280mm
a: 100mm
b: 5mm
c: 2mm
d: 14.5mm
Model: 805C-300
Measuring range: 2-300mm
Catalogue accuracy: 卤0.04mm
L: 380mm
a: 100mm
b: 5mm
c: 2mm
d: 14.5mm
DITRON 805D DOUBLE-HOOK SPECIFICATIONS
All dimensions below are in millimetres.
Model: 805D-150
Measuring range: 0-150mm
Catalogue accuracy: 卤0.03mm
L: 230mm
a: 100mm
b: 21.5mm
c: 2.5mm
d: 14.5mm
e: 3.5mm
Model: 805D-200
Measuring range: 0-200mm
Catalogue accuracy: 卤0.05mm
L: 280mm
a: 100mm
b: 21.5mm
c: 2.5mm
d: 14.5mm
e: 3.5mm
Model: 805D-300
Measuring range: 0-300mm
Catalogue accuracy: 卤0.05mm
L: 380mm
a: 100mm
b: 21.5mm
c: 2.5mm
d: 14.5mm
e: 3.5mm
The dimensional letters refer to the respective catalogue drawings. Compare the complete contact profile with your component rather than using one dimension alone to judge clearance.
The supplied page does not list display resolution for either series. Confirm this separately if your purchasing specification requires a particular display increment.
KEY FEATURES
Hook-shaped measuring contacts
The main feature of these instruments is their measuring-end geometry. A hook can contact a recessed surface that may be difficult to reach with a conventional flat-ended depth blade, provided the component offers sufficient clearance.
The single-hook and double-hook designs have different profiles. Check the approach direction and the exact surface to be measured before choosing.
Zero-setting at any position
Both series allow zero-setting at a selected position. This supports comparative checks against a reference dimension.
For example, an operator can establish a reference using a suitable setting arrangement and then observe the dimensional difference on subsequent components.
Zero-setting does not remove the need to account for contact geometry or verify the measuring setup. It also does not establish that the instrument uses an absolute encoder.
Millimetre and inch conversion
Both series support conversion between millimetres and inches at any position, helping operators work with drawings that use different units.
100mm reference-base dimension
Both series list dimension a as 100mm across all three sizes. Check that the workpiece provides a suitable seating area for the reference base.
A wide base still requires clean, stable support. Burrs, curved surfaces or interrupted edges can prevent correct seating.
HOW TO SELECT THE RIGHT HOOK DEPTH CALIPER
1. Identify the measuring surface
Establish whether you need to measure a groove feature, recessed shoulder, depth or step. The hook must contact the intended face without interference from adjacent surfaces.
2. Check the minimum and maximum range
Choose the 805C only where the required measurement falls within its listed 2mm minimum and selected maximum range.
Choose the appropriate 805D size where its 0-150mm, 0-200mm or 0-300mm range and contact profile suit the task.
3. Compare the accuracy requirement
The 805C-150 and 805C-200 list accuracy of 卤0.03mm, while the 805C-300 lists 卤0.04mm.
The 805D-150 lists 卤0.03mm, while the 805D-200 and 805D-300 list 卤0.05mm.
Assess these specifications against the component tolerance and inspection method. A digital display alone does not establish suitability for a tight tolerance.
4. Check access and clearance
Confirm the entrance opening, groove width, available space behind the shoulder and reference-base support.
Measuring range is different from physical access. A 300mm model cannot measure a feature that its hook cannot enter or contact correctly.
5. Confirm the reference method
Define which surface supports the base and which surface the hook contacts. Where the setup requires an offset or a reference setting, establish and verify it before recording results.
PRACTICAL MEASURING PROCEDURE
Clean the reference base, hook contact and workpiece surfaces.
Inspect the hook for damage and remove loose chips from the groove or recess.
Check the instrument against a suitable reference for the intended measuring arrangement.
Seat the base firmly on the designated reference surface.
Move the hook into contact using light, consistent pressure. Avoid pulling or twisting the instrument against the feature.
Check that the beam and base remain correctly aligned.
Repeat the measurement to assess consistency before recording the result.
For repeated inspection, use the same reference surfaces and contact direction throughout the batch.
FREQUENTLY ASKED QUESTIONS
Which model is intended for groove measurements?
The catalogue describes the 805C single-hook series for groove, depth and width measurements. Suitability depends on the actual groove geometry.
Does the 805C measure from zero?
Its listed measuring range starts at 2mm. The 805D series lists ranges starting at 0mm.
Are the 200mm versions equally accurate?
No. The 805C-200 lists 卤0.03mm, while the 805D-200 lists 卤0.05mm.
Does the double hook measure two surfaces simultaneously?
The catalogue does not establish simultaneous two-surface measurement. Use the contact arrangement according to the intended measuring method.
Is the display resolution 0.01mm?
The supplied catalogue page does not specify resolution. Confirm it before purchase if required.
Can these instruments be used with coolant?
This page does not state an IP protection rating. Confirm environmental suitability for wet or coolant-exposed applications.
SEO META DESCRIPTION
Compare DITRON 805C single-hook and 805D double-hook digital depth calipers for groove, depth and step measurements. Enquire with MTM Precision Malaysia.
ENQUIRE ABOUT DITRON DIGITAL HOOK DEPTH CALIPERS
Send MTM Precision your component drawing or a clear photo showing the groove, shoulder or step. Include the required range, tolerance, opening size and reference surface so we can help identify the appropriate model.
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
