United States

Wrentham Tool Group

155 Farm Street, 02019, Bellingham, MA, United States

A2LA 4180.01ISO/IEC 17025Register refreshed 2026-11-06

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Scope lines: 4
A2LA certificate: 1
Site in our directory: 1

A2LA accredited scope

What this lab is accredited for

We could not match the method references in this lab’s scope to published test standard numbers. The full scope as published is below.

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A2LA certificate 4180.01 · 4 lines

Line	Method	Matrix	Range
1	ISO/IEC 17025:2017; ANSI/NCSL Z540.3-2006	-	to 1 in
2	-	- Show page text Extracted from the scope document; tables may not line up. View scope for the original. (A2LA Cert. No. 4180.01) 04/21/2025 Page 2 of 3 Parameter/Equipment Range CMC2 (±) Comments Penetration Points, Master Plugs & GO NOGO Plug Gages Type 1, Type 1A Phillips, PoziDriv®, Phillips II®, PSD®, Type 3 Square Drive Quadrex® Mortorq® Off set cruciform, Torq-Set®, Tri-Wing®, BNAE, Hi-Torq, Spline-Lok, Hi-Lok, 12 Point 150 µin 3.2' 88 µin 150 µin 54 µin 3.2' 150 µin Nikon microscope Starrett video comparator Starrett video comparator Nikon microscope P&W Supermicrometer™ Starrett video comparator Nikon microscope Fastener Recess External GO NOGO Gages 12 Point, Mortorq®, Hexlobe® 150 µin 54 µin Nikon microscope, P&W Supermicrometer™ Driver Bit Gages Type1, Type 1A, Phillips®, PoziDriv®, Type 3 Square 240 µin 54 µin 150 µin Indicator with master plugs P&W Supermicrometer™ Nikon microscope Driver Bit Test Blocks Type1, Type 1A, Phillips®, PoziDriv®, Type 3 Square, Hexstix®, Flat Tip, PSD 150 µin Nikon microscope Indicators (0 to 1) in 54 µin P&W Supermicrometer™ with stage fixture Thread Plugs X & W Major Diameter Pitch Diameter 0.060 in 1.0 in 54 µin 43 µin P&W Supermicrometer™, thread wires Cylindrical Pins & Plugs Up to 1 in 38 µin P&W Supermicrometer™ _____________________________________________ 1 This laboratory offers commercial calibration service.	0 to 1 in
3	Extracted from the scope document; tables may not line up. View scope for the original. (A2LA Cert. No. 4180.01) 04/21/2025 Page 3 of 3 2 Calibration and Measurement Capability Uncertainty (CMC) is the smallest uncertainty of measurement that a laboratory can achieve within its scope of accreditation when performing more or less routine calibrations of nearly ideal measurement standards or nearly ideal measuring equipment. CMCs represent expanded uncertainties expressed at approximately the 95 % level of confidence, usually using a coverage factor of k = 2. The actual measurement uncertainty of a specific calibration performed by the laboratory may be greater than the CMC due to the behavior of the customer’s device and to influences from the circumstances of the specific calibration. 3 This scope meets A2LA’s P112 Flexible Scope Policy.
4	ISO/IEC 17025:2017; ANSI/NCSL Z540.3-2006	-	-

Ranges are reproduced from the accredited scope document as published, and only where we found that range printed in the document for the line. Otherwise the cell reads “See scope document”. An absent range means the register did not state one. Line numbers are ours, for cross-reference; they follow the order of the scope document.

Location

155 Farm Street, Bellingham, MA, 02019, US

42.08695, -71.47464

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Accreditation data refreshed from the A2LA register on 2026-11-06.

This page mirrors a public register. For a purchasing, audit or regulatory decision, confirm against the A2LA entry linked above.