Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
STARRETT Spindle Square, Inch, 0-25-0 Dial, 0.0005 in Graduations, MPN 649-5 - Spindle Squares
STARRETTSpindle Squares

STARRETT Spindle Square, Inch, 0-25-0 Dial, 0.0005 in Graduations, MPN 649-5

The STARRETT Spindle Square (SKU 3G-OTH-223817) is a spindle square with a measurement range of 0 in to 1.25 in. It features a 0-25-0 dial reading with 0.0005 in graduations, in inch units. This product is…

SKU 3G-OTH-223817

Also listed as: 6495 · 649 5

Brand
STARRETT
Item
Spindle Square, Inch, 0-25-0 Dial, 0.0005 in Graduations, MPN 649-5
Part Number
649-5
Category
Spindle Squares
Available to Order
Also known as:649-5STARRETT
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

STARRETT
Manufacturer Part Number
649-5
Type
Inch
Graduations
0.0005 in
Dial Reading
0-25-0

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

STARRETT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The STARRETT Spindle Square (SKU 3G-OTH-223817) is a spindle square with a measurement range of 0 in to 1.25 in. It features a 0-25-0 dial reading with 0.0005 in graduations, in inch units. This product is manufactured by STARRETT under part number 649-5.

Frequently Asked Questions

What is a STARRETT Spindle Square used for?

A STARRETT Spindle Square is used to check the squareness of spindles, arbors, and other rotating machine components. It is commonly applied in machine tool setup, quality inspection, and maintenance to ensure perpendicular alignment within 0.0005 in graduations.

What are the specifications of the STARRETT Spindle Square 649-5?

The STARRETT Spindle Square 649-5 has a measurement range of 0 in to 1.25 in, a 0-25-0 dial reading, and 0.0005 in graduations in inch units. It is manufactured by STARRETT under part number 649-5 and is designed for precision squareness checks.

Where to buy STARRETT Spindle Square 649-5 worldwide?

You can source the STARRETT Spindle Square 649-5 worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to global destinations as an industrial equipment supplier. Contact us for availability and lead time.

How to maintain a STARRETT Spindle Square?

To maintain a STARRETT Spindle Square, keep it clean and store it in a protective case to prevent damage. Avoid dropping or applying excessive force. Periodically check calibration against a known reference surface to ensure accuracy remains within the 0.0005 in graduations.

Used in

Common applications for STARRETT
Metalworking — Starrett S117PC center punch set for marking drill starting points on steel plates.
Fabrication — Starrett Intenss PRO-DIE band saw blade for cutting stainless steel and hard alloys.
Maintenance — Starrett Duratec SFB carbon steel band saw blade for cutting aluminum, wood, and soft metals.
Tool and die — Starrett S264WB square-type center punch set for precise layout work.
Production machining — Starrett PT06690 replacement points to restore worn center punches.
General industrial — Starrett Intenss PRO band saw blade for cutting stainless steel in fabrication shops.
Not sure this is the right part? Photo-identify it→

STARRETT Products

3G Electric supplies STARRETT spindle squares. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

Cross-referenced by specification & description
STARRETT
STARRETT
Outside micrometer for precision measurement of external dimensions. Range 123/125 in to 1 121/125 in (25 mm to 50 mm) with inch/metric resolution 0.00005 in/0.001 mm and accuracy ±0.00015 in. Includes Certificate of Inspection. No SPC output
STARRETT
STARRETT
This micrometer measures external dimensions from 4 to 5 inches (101 to 127 mm) with inch/metric resolution of 0.00005 in / 0.001 mm and accuracy of ±0.004 mm. It is used for manual precision measurement in machining, toolroom inspection, and quality control. Includes a Certificate of Inspection; no SPC output
STARRETT
STARRETT
This STARRETT micrometer measures external dimensions from 0 to 1 inch (0 to 25.4 mm) with a resolution of 0.00005 inch or 0.001 mm. It features inch/metric reading and an accuracy of ±0.004 mm. The tool is supplied with a Certificate of Inspection and is intended for precision measurement in machining and quality inspection applications. It does not include SPC output
STARRETT
STARRETT
This mechanical micrometer measures outside dimensions from 25 mm to 50 mm (1 to 2 inches) with dual inch/metric readout. It provides 0.001 mm (0.00005 in) resolution and ±0.00015 in accuracy. Includes a Certificate of Inspection. Suitable for precision measurement in machining and quality control applications
STARRETT
STARRETT
Metric plunger-type dial indicator with 0 mm to 0.5 mm range and 0.002 mm accuracy. Features a 0-10-0 balanced reading scale on a 1.69 in AGD 1 dial with back lug mounting. Used for precision measurement of small displacements, runout, taper, and surface flatness in machining and inspection
STARRETT
STARRETT
This STARRETT micrometer is designed for precision outside diameter measurements in machining, tooling, and quality inspection. It features a 0 to 1 inch (0 to 25.4 mm) range with inch/metric resolution of 0.00005 in / 0.001 mm and accuracy of ±0.004 mm. The micrometer includes a Certificate of Inspection and does not have SPC output

More from STARRETT

View all STARRETT parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first