Universal Concentricity Gaging System Dual Indicator K2 Series · -10

K2-10 Dual Indicator Concentricity Gage

Standard Carrier + Vertical Carrier measurement architecture.

The Universal Punch K2-10 is a dual-indicator concentricity gage for cylindrical parts from 1/8–1 in (3–25 mm) in diameter and published part lengths up to 4 in (102 mm). The K2 architecture combines a Standard Carrier with a Vertical Carrier so two indicator positions can be configured around the same supported rotating part.

Universal Punch K2-10 dual indicator concentricity gage with Standard Carrier and Vertical Carrier
K2-10 dual-indicator architecture Configured example shown with Standard and Vertical Carrier indicator positions.
1/8–1 in 3–25 mm published part diameter class
Up to 4 in 102 mm published part length
Dual Indicator Standard + Vertical Carrier architecture
11.5 lb* 5.2 kg in current general-data table; see documentation note
What Is the K2-10?

A dual-indicator -10 gage designed around vertical secondary measurement access.

The K2-10 is the small-diameter member of Universal Punch's K2 dual-indicator concentricity-gage family. Current Universal Punch selection documentation identifies the model as a Dual Indicator Gage / 3–25 mm / Standard Carrier / Vertical Carrier.

Its defining feature is not simply that the gage can hold two indicators. The K2-10 provides two different carrier positions around one supported rotating component, including a vertical secondary measurement position. The actual characteristics inspected depend on the component, roller support, indicator contacts, datum strategy and drawing requirement.

The Universal Punch K2-10 is a dual-indicator concentricity gage for 1/8–1 in (3–25 mm) diameter parts. It combines a Standard Carrier and Vertical Carrier, supports published part lengths up to 4 in (102 mm), and is designed for precision rotational inspection where two indicator positions—including vertical secondary access—are useful in one gaging setup.

Full Universal Punch K2-10 showing the Standard Carrier and Vertical Carrier dual indicator arrangement
Two carrier positions, one rotational setup. The K2-10 combines Standard Carrier access with a Vertical Carrier for the second indicator position.
Why K2?

Two indicator positions with different measurement access.

A single-indicator gage can be appropriate when one contact position answers the inspection requirement. The K2-10 becomes useful when the setup benefits from a second indicator position and that second measurement is better served by vertical access.

Universal Punch's current parts documentation separately identifies Standard Carrier and multiple Vertical Indicator Carrier configurations for -10 systems, reinforcing that carrier architecture is a genuine configuration decision rather than a cosmetic model difference.

Carrier 1 Standard Carrier

Primary indicator position within the K2 dual-indicator architecture.

Carrier 2 Vertical Carrier

Secondary indicator access from a vertical carrier position.

Inspection-method note: two indicators do not automatically define what is being measured. Indicator contacts, roller support and interpretation should follow the actual drawing, datum scheme and inspection plan.
Published K2-10 Data

Technical specifications at a glance.

Current Universal Punch general-data literature groups the K1/K2-10 platform at the dimensions and weight below. Legacy Issue 9 literature confirms the diameter and part-length class but lists a different K2-10 shipping weight, which is called out separately rather than silently reconciled.

Part Diameter 1/8–1 in 3–25 mm
Part Length Up to 4 in 102 mm
Current Shipping Weight 11.5 lb* 5.2 kg in current general-data table
Published Gage Length 10.5 in 267 mm
Published Gage Width 6.5 in 165 mm
Published Gage Height Approx. 6 in 152 mm
*Shipping-weight documentation note: the current Universal Punch general-data table lists the K1/K2-10 platform at 11.5 lb / 5.2 kg. Legacy Issue 9 literature lists the K2-10 at 4.9 lb / 2.2 kg. Because the two Universal Punch documents disagree, current K2-10 shipping weight should be confirmed at quotation.
How the K2-10 Works

Support the part. Rotate the part. Monitor two indicator positions.

01
Support the component on the selected roller geometry.

The roller set must match the usable cylindrical support surfaces and required clearance around the part.

02
Position the top-arm yoke and both indicator contacts.

The adjustable top-arm and carrier positions allow the contact arrangement to be configured around the application.

03
Rotate the part through the gaging position.

Universal Punch documentation identifies a manual timing-belt pulley system as the standard rotational drive architecture.

04
Observe the Standard and Vertical Carrier indicator positions.

The K2 layout allows two measurement contacts to be configured around the same supported rotating component.

Close-up of the Universal Punch K2-10 roller support and vertical indicator contact measuring a cylindrical part
K2-10 measurement detail. Final probe positions, indicator selection and roller support should be configured from the actual part and inspection requirement.
K1 vs. K2 vs. KK

Choose by measurement access—not diameter alone.

K1 and K2 share the same dual-indicator concept. The second carrier architecture is what separates them.

Alternative Dual Architecture

K1-10

Dual-indicator -10 architecture combining a Standard Carrier and Side Carrier.

  • Two indicator positions
  • Standard + Side Carrier
  • Evaluate when side access better matches the second measurement position
View K1-10 →
Current Model

K2-10

Dual-indicator -10 architecture combining a Standard Carrier and Vertical Carrier.

  • Two indicator positions
  • Standard + Vertical Carrier
  • 1/8–1 in / 3–25 mm class
Back to K2-10 ↑
Three Indicator Architectures

KK1-10 / KK2-10

Triple-indicator configurations for inspection setups requiring three indicator positions.

  • KK1: Standard + Two Side Carriers
  • KK2: Standard + Side + Vertical Carrier
  • Evaluate when two contacts are not enough
Explore KK1 / KK2 families →
Selection rule: do not choose K1 versus K2 based only on part diameter. Choose according to where the second indicator needs to contact the part: K1 = Side Carrier; K2 = Vertical Carrier.
Configure the Complete System

The gage model is only the first decision.

Universal Punch defines the Concentricity Gaging System around three primary selections. The value of the K2-10 depends on matching all three to the actual part and inspection objective.

01
Select the gage model

Choose K2-10 when the -10 size class and Standard + Vertical Carrier dual-indicator architecture fit the inspection.

02
Select the main rollers

Match the support geometry to available cylindrical lands, shoulders, threads, grooves and required feature clearance.

03
Select indicators & accessories

Confirm indicator resolution, range, stylus access, mounts, carrier adjustment, stops, calibration requirements and optional drive system.

Complete Universal Punch K2-10 concentricity gage showing dual indicators, rollers, guide rods and Vertical Carrier
Configured K2-10 system. The photographed indicators illustrate one setup; final indicator and contact selection can vary by application.
K2-10 Roller Options

Match the support geometry to the workpiece.

Because the K2-10 is a -10 model, it uses the published -10 roller families. The correct roller set depends on the available cylindrical support surfaces and required feature clearance.

Full Plain 110-10FP
Half Plain 110-10HP
Quarter Plain 110-10QP
Full Plain Zero 110-10FZ
Half Plain Zero 110-10HZ
Quarter Plain Zero 110-10QZ
Thin Zero Plain 110-10TZ
Special Top Contacts Multiple published -10 options
What rollers can be used with the K2-10? The K2-10 uses Universal Punch -10 roller families, including Full Plain, Half Plain, Quarter Plain, Full Zero, Half Zero, Quarter Zero and Thin Zero configurations. Final roller selection should be based on the part's usable support surfaces and required feature clearance.
Indicator Options

Configure both carrier positions around the measurement requirement.

Universal Punch's current parts documentation lists both analog and digital indicators, plus dovetail mounts, swivel supports, extensions and carrier hardware.

Indicator Selection

Analog & digital options

Indicator type should be chosen around the actual tolerance, probe direction, stylus reach, expected travel and documentation requirements.

  • Horizontal dial test indicators
  • Parallel-type dial test indicators
  • Fine-resolution analog indicators
  • Digital test indicators
  • Bluetooth-capable digital indicator listings
Mounting & Access

Build the contact path around the part

The Standard and Vertical Carrier positions can be combined with published mounts and attachments to reach the intended measurement locations.

  • Dovetail mounts
  • Swivel supports
  • Extension holders
  • Vertical indicator carriers
  • Precision fine-adjustment carrier options
Photography note: the yellow indicators shown on this page represent one configured K2-10 setup. They should not be interpreted as the only indicator option available for the model.
Accuracy, Calibration & Drive

Specify the complete measurement requirement.

Accuracy classification, indicator resolution, calibration documentation and rotation method should be considered together when configuring the K2-10.

Published Accuracy Classes

Standard Black / Precision Gold

≤ 4 µm Standard Black
≤ 2 µm Precision Gold eligibility for applicable -10 / -20 models

Universal Punch documentation identifies these classifications as calibrated and directly traceable to NIST. Confirm the exact K2-10 configuration, indicator resolution and documentation requirements when ordering.

Optional Powered Rotation

K2-10 Variable-Speed Motor Assembly

0–10 rpm Published variable-speed system range
15 in 381 mm K2-10 motorized base plate listing

Universal Punch documentation identifies a 24 VDC variable-speed motorized system for selected gage models, including a dedicated K2-10 assembly with forward/reverse and variable-speed control. Confirm controller, transformer and final drive configuration with the quote.

Universal Punch K2-10 dual indicator concentricity gage configured on a precision inspection bench
K2-10 in a precision inspection environment. Final roller geometry, indicator positions and carrier setup should be selected from the actual component and inspection requirement.
Where K2-10 Fits

Designed for compact dual-indicator inspection with vertical measurement access.

The K2-10 is worth evaluating when the part fits the -10 size class and the inspection arrangement benefits from a second measurement position accessed from a Vertical Carrier.

  • Part diameter fits 1/8–1 in / 3–25 mm.
  • Published part length fits up to 4 in / 102 mm.
  • Two indicator positions are useful in one rotational setup.
  • Vertical access is appropriate for the second measurement position.
  • The part has suitable support surfaces for the selected roller geometry.

If side access is better for the second measurement, evaluate K1-10. If three simultaneous measurement positions are required, evaluate the KK1-10 or KK2-10 architectures.

K2 Series Size Comparison

K2-10, K2-20 and K2-40.

The same Standard + Vertical Carrier architecture is published across three common diameter classes.

Model Part Diameter Part Length Published Shipping Weight Architecture
K2-10 1/8–1 in / 3–25 mm Up to 4 in / 102 mm Current table: 11.5 lb / 5.2 kg* Standard + Vertical Carrier
K2-20 3/8–2 in / 10–50 mm Up to 6 in / 152 mm 14.8 lb / 6.8 kg Standard + Vertical Carrier
K2-40 3/4–4 in / 20–102 mm Up to 8 in / 203 mm 18.5 lb / 8.4 kg Standard + Vertical Carrier
*K2-10 weight note: legacy Issue 9 literature lists K2-10 at 4.9 lb / 2.2 kg while current general-data literature lists the K1/K2-10 platform at 11.5 lb / 5.2 kg. Confirm current shipping weight when ordering.
K2-10 Technical FAQ

Questions buyers, engineers and inspectors ask before specifying the gage.

The Universal Punch K2-10 is a dual-indicator concentricity gage for cylindrical parts in the 1/8–1 in (3–25 mm) diameter class. Its defining architecture combines a Standard Carrier with a Vertical Carrier, and published part length is up to 4 in (102 mm).
Both are dual-indicator -10 concentricity gages. K1-10 combines a Standard Carrier and Side Carrier. K2-10 combines a Standard Carrier and Vertical Carrier.
The Vertical Carrier provides the second indicator position with vertical measurement access. This is the defining architectural difference between K2 and K1.
Universal Punch publishes a K2-10 part-diameter range of 1/8–1 in (3–25 mm) and part lengths up to 4 in (102 mm).
The current K1/K2-10 general-data table lists approximately 10.5 in (267 mm) gage length, 6.5 in (165 mm) width and approximately 6 in (152 mm) height.
Current Universal Punch general-data literature lists K1/K2-10 at 11.5 lb (5.2 kg) shipping weight. Legacy Issue 9 K2-10 literature lists 4.9 lb (2.2 kg). Current shipping weight should therefore be confirmed at quotation.
Published -10 roller styles include Full Plain, Half Plain, Quarter Plain, Full Plain Zero, Half Plain Zero, Quarter Plain Zero and Thin Zero Plain, along with multiple top-contact options.
Universal Punch parts documentation lists analog dial test indicators and digital-indicator options. Indicator resolution, range, stylus reach and mounting should be selected around the application.
Yes. Universal Punch lists a K2-10 variable-speed motor assembly with a 15 in (381 mm) base plate. The current variable-speed system documentation identifies a 24 VDC, 0–10 rpm drive architecture.
Universal Punch documentation identifies Precision Gold classification for applicable -10 and -20 models at better than or equal to 2 µm. Confirm the exact K2-10 configuration, indicators and calibration requirements when ordering.
Choose between K1-10 and K2-10 according to second-indicator access. K1-10 uses a Side Carrier; K2-10 uses a Vertical Carrier.
Evaluate the KK1 or KK2 triple-indicator architectures when the inspection requires three indicator positions instead of the two provided by K1 and K2.
Send the part drawing, diameter, overall length, usable support surfaces, two intended measurement locations, tolerance or inspection objective, indicator preference, calibration requirements and any motorized-drive requirements.
Configure the K2-10 Around the Part

Start with the drawing—not the catalog photograph.

Send Universal Punch the part drawing, diameter, overall length, usable cylindrical support surfaces, primary measurement position, required vertical secondary measurement position, tolerance or inspection objective, preferred indicators, calibration requirements and manual or motorized-drive preference. Our team can review the complete K2-10 configuration before the system is quoted.