---
product_id: 59271258
title: "BL-123 Pair of 1 x 2 x 3 Precision Steel 1-2-3 Blocks by 1-2-3 Blocks"
brand: "1-2-3 blocks"
price: "A$22"
currency: AUD
in_stock: false
reviews_count: 8
url: https://www.desertcart.com.au/products/59271258-bl-123-pair-of-1-x-2-x-3-precision
store_origin: AU
region: Australia
---

# ±0.0002" size precision 23 versatile holes for clamping 56-60 RC hardness steel BL-123 Pair of 1 x 2 x 3 Precision Steel 1-2-3 Blocks by 1-2-3 Blocks

**Brand:** 1-2-3 blocks
**Price:** A$22
**Availability:** ❌ Out of Stock

## Summary

> 📐 Elevate your precision game with unmatched steel accuracy!

## Quick Answers

- **What is this?** BL-123 Pair of 1 x 2 x 3 Precision Steel 1-2-3 Blocks by 1-2-3 Blocks by 1-2-3 blocks
- **How much does it cost?** A$22 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/59271258-bl-123-pair-of-1-x-2-x-3-precision)

## Best For

- 1-2-3 blocks enthusiasts

## Why This Product

- Trusted 1-2-3 blocks brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Micron-Level Accuracy:** Size, flatness & parallelism held within ±0.0002" for flawless setups
- • **Rock-Solid Durability:** Hardened tool steel with 56-60 RC hardness ensures long-lasting precision
- • **Lightweight Yet Strong:** Cross-drilled design reduces weight without sacrificing strength or stability
- • **Perfectly Matched Pair:** Blocks matched to ±0.0002" tolerance for seamless multi-block setups
- • **Versatile Clamping Options:** 23 holes including 5 threaded for 3/8-16 bolts maximize fixture flexibility

## Overview

The BL-123 1-2-3 Precision Steel Blocks deliver industry-leading accuracy with size, flatness, and squareness tolerances within ±0.0002" to ±0.0003" per inch. Crafted from hardened tool steel rated 56-60 RC, these blocks feature 23 holes—including 5 threaded for 3/8-16 bolts—offering versatile clamping options. Their matched pair design and cross-drilled construction provide lightweight strength and flawless setup for professional layout, inspection, and machining tasks.

## Description

Product description Size within +/- .0002" Flatness and parallelism within .0002" Squareness on all sides is 0.0003" per inch Pairs are matched to a tolerance of 0.0002" Product application Used for set-up, layout and inspection jobs Product features Has 23 holes with 5 holes tap to 3/8-16 threads for clamping and 18 untapped holes Made of hardened tool steel and precision ground on all six sides Cross drilling design allows efficient use of lower weight with maximum strength Heat treat and hardness 56 to 60 RC 2 pieces per set Weight: 2.1 Lbs

## Features

- Size within +/- .0002"
- Flatness and parallelism within .0002"
- Squareness on all sides is 0.0003" per inch
- Pairs are matched to a tolerance of 0.0002"
- Has 23 holes with 5 holes tap to 3/8-16 threads for clamping and 18 untapped holes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Smith Industries |
| Part Number | BL-123 |
| Product Dimensions | 2.54 x 2.54 x 7.62 cm; 907.18 g |
| Item model number | 54988 |
| Colour | Silver |
| Finish | Unfinished |
| Material | Metal |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Handle material | Alloy Steel |
| Special Features | Ergonomic |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 907 g |

## Product Details

- **Material:** Metal
- **Brand:** 1-2-3 Blocks
- **Colour:** Silver
- **Product dimensions:** 25L x 25W millimetres
- **Exterior finish:** Polished Alloy Steel

## Images

![BL-123 Pair of 1 x 2 x 3 Precision Steel 1-2-3 Blocks by 1-2-3 Blocks - Image 1](https://m.media-amazon.com/images/I/81I7CepoAPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very precise and sturdy.
*by H***  on 29 December 2018*

Very sturdy and precise items. They come coated in grease and wrapped in tissue paper to make sure that they don’t rust over time. Once that’s cleaned off they’re amazing.

### ⭐⭐⭐⭐⭐ Worthwhile Purchase
*by K***A on 12 August 2019*

Tested on a surface table and very precise. Good value.

### ⭐⭐⭐⭐⭐ Bargain
*by F***N on 27 July 2019*

These came wrapped in oiled paper - and seemed to have been on a shelf for some time. However, they are as nicely made as I could have hoped and as accurate as I am able to measure. Recommended.

## Frequently Bought Together

- BL-123 Pair of 1" x 2" x 3" Precision Steel 1-2-3 Blocks
- 123 Blocks Attachment Hardware Kit
- Milescraft 4009 Fence Clamps - 2 pack Universal Clamps with 3/8" Rod for Table Saws, Mitre Saws, Router Tables and Clamping Squares

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.au/products/59271258-bl-123-pair-of-1-x-2-x-3-precision](https://www.desertcart.com.au/products/59271258-bl-123-pair-of-1-x-2-x-3-precision)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-09*