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The Suburban Tool PB-123 is a precision 1-2-3 block measuring 1" x 2" x 3", machined from hardened steel and ground on all six sides to give machinists a dependable square and parallel reference. Supplied as a single block, it is a toolroom staple for layout, setup work, workholding and inspection on the surface grinder or granite plate.

Every face is finished to serve as a reliable datum, so toolmakers and QC techs can trust the PB-123 from Suburban Tool for repeatable results shift after shift.

  • Hardened steel construction stands up to daily toolroom use
  • Ground on all six sides for true, square and parallel faces
  • Solid, hole-free body offers clean, unobstructed reference surfaces
  • Ideal for layout, setup, workholding and inspection tasks
  • Available as a single block or in matched pairs
  • Made in the USA by Suburban Tool

Available with No Certification, Short Form, or Long Form Certification.

Suburban Tool Inc.

1-2-3 Block (PB-123)

SKU PB-123
$135.45

The Suburban Tool PB-123 is a precision 1-2-3 block measuring 1" x 2" x 3", machined from hardened steel and ground on all six sides to give machinists a dependable square and parallel reference. Supplied as a single block, it is a toolroom staple for layout, setup work, workholding and inspection on the surface grinder or granite plate.

Every face is finished to serve as a reliable datum, so toolmakers and QC techs can trust the PB-123 from Suburban Tool for repeatable results shift after shift.

  • Hardened steel construction stands up to daily toolroom use
  • Ground on all six sides for true, square and parallel faces
  • Solid, hole-free body offers clean, unobstructed reference surfaces
  • Ideal for layout, setup, workholding and inspection tasks
  • Available as a single block or in matched pairs
  • Made in the USA by Suburban Tool

Available with No Certification, Short Form, or Long Form Certification.

Specifications

Model PB-123
Single or Pair Single
Holes None
Square 0.0002" total
Flat & Parallel 0.0002"
Size (Inches) 1" x 2" x 3" ±0.0001"
Weight 2 lb
$135.45

Add a certification?

The certificate is added to your cart as a separate line for this tool.

Allow up to 2 days for order processing. Items not in stock are made to order in Auburn Hills, Michigan; we email you the expected date, and they ship separately with their own shipping charge.

∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology ∼ Made in Auburn Hills, Michigan ∼ America’s Toolmaker for 60+ Years ∼ Precision Workholding & Metrology

The Suburban Tool PB-123 is a precision 1-2-3 block measuring 1" x 2" x 3", machined from hardened steel and ground on all six sides to give machinists a dependable square and parallel reference. Supplied as a single block, it is a toolroom staple for layout, setup work, workholding and inspection on the surface grinder or granite plate.

Every face is finished to serve as a reliable datum, so toolmakers and QC techs can trust the PB-123 from Suburban Tool for repeatable results shift after shift.

  • Hardened steel construction stands up to daily toolroom use
  • Ground on all six sides for true, square and parallel faces
  • Solid, hole-free body offers clean, unobstructed reference surfaces
  • Ideal for layout, setup, workholding and inspection tasks
  • Available as a single block or in matched pairs
  • Made in the USA by Suburban Tool

Available with No Certification, Short Form, or Long Form Certification.

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See It In Action

  • Made in Auburn Hills, Michigan

    Precision workholding and metrology since the 1960s

  • UPS shipping on tools 80 lb and under

    Heavier tools are quoted by phone

  • Questions? Call (248) 391-7800

    Or email tools@subtool.com for a quote