---
product_id: 48496462
title: "Starrett 18AA Automatic Centre Punch With Adjustable Stroke, 4\" Length, 7/16\" Diameter"
brand: "starrett"
price: "$43.91"
currency: USD
in_stock: true
reviews_count: 8
category: "Starrett"
url: https://www.desertcart.us/products/48496462-starrett-18aa-automatic-centre-punch-with-adjustable-stroke-4-length
store_origin: US
region: United States of America
---

# 4" length for precise control Adjustable stroke via knurled cap Hardened steel for durability Starrett 18AA Automatic Centre Punch With Adjustable Stroke, 4" Length, 7/16" Diameter

**Brand:** starrett
**Price:** $43.91
**Availability:** ✅ In Stock

## Summary

> ⚡ Punch Perfect Every Time — No Hammer Needed!

## Quick Answers

- **What is this?** Starrett 18AA Automatic Centre Punch With Adjustable Stroke, 4" Length, 7/16" Diameter by starrett
- **How much does it cost?** $43.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/48496462-starrett-18aa-automatic-centre-punch-with-adjustable-stroke-4-length)

## Best For

- starrett enthusiasts

## Why This Product

- Trusted starrett brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from hardened and tempered alloy steel, engineered for long-lasting wear resistance.
- • **Customizable Impact:** Adjust stroke tension easily with the knurled cap for consistent, uniform marks every time.
- • **Hammer-Free Precision:** Create perfect starter dimples without a hammer, freeing your hands for steady work.
- • **Ergonomic Knurled Grip:** Comfort meets control with a textured handle designed for secure, slip-free use.
- • **Replaceable & Sharpenable Tip:** Maintain peak performance by swapping or sharpening the punch point effortlessly.

## Overview

The Starrett 18AA Automatic Centre Punch is a 4-inch, 7/16-inch diameter precision tool designed to create starter dimples without a hammer. Featuring an adjustable stroke controlled by a knurled cap and spring tension, it ensures uniform mark depth and size. Made from hardened alloy steel with a knurled grip, it offers durability and ergonomic handling. The replaceable and sharpenable point extends tool life, making it ideal for carpentry and metalwork professionals seeking efficiency and precision.

## Description

Product Description The Starrett 18AA automatic centre punch with adjustable stroke is 4" long with a 7/16" (11 mm) diameter for creating a starter dimple without the need for a hammer. The punch has an adjustable stroke, which can be set by turning the knurled cap and is regulated by spring tension for uniform dimple size at every setting. The punch is made from hardened and tempered steel components that provide wear resistance and strength. It has a round handle that is knurled for grip. The point can be removed for replacement or sharpening. Centre punches make small dimple marks in a workpiece to help guide a drill bit. Manual centre punches have a metal shank with a point and are typically tapped with a ball-peen hammer to mark the material. Automatic centre punches have an internal spring mechanism that enables them to mark the material without using a hammer, leaving one hand free for steadying the work. The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment and saw blade products. Box Contains 1 x Automatic Centre Punch

Review: Auto centre punch - Item arrived as advertised and I’m very happy with it Thank you Good quality
Review: Excellent punch, strong recommendation from me. - As with other Starrett products, a well engineered punch. The "automatic" bit works just fine, leaving a significant mark in wood or steel. It is smaller than I expected (my prejudice?) but works perfectly well. Wholly recommended. I believe the tip is replaceable too - should it be needed

## Features

- Automatic centre punch with 4" length and 7/16" diameter punches a starter dimple without the need for a hammer
- Stroke impact can be adjusted by turning knurled cap
- Spring tension regulates stroke for uniform dimple size at each setting
- Hardened and tempered steel components provide wear resistance and strength
- Point can be removed for replacement or sharpening
- Rugged automatic punch with all-steel handle and parts
- Internal mechanism strikes a blow when downward pressure is applied
- Spring tension is constant so marks made by the point are uniform in depth and size
- The point can be easily removed for regrinding or replacement
- Adjustable cap regulates the stroke

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0006J4Q5U |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Best Sellers Rank | 126,629 in DIY & Tools ( See Top 100 in DIY & Tools ) 64 in Centre Punches |
| Body Shape | Cylindrical |
| Brand | Starrett |
| Brand Name | Starrett |
| Closure Type | Screw Cap |
| Colour | Black |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 721 Reviews |
| Drill Point | punch |
| Global Trade Identification Number | 00049659501193, 30004965950111 |
| Grip Type | Knurled |
| Included Components | Replacement Point |
| Ink Colour | Black |
| Ink colour | Black |
| Is the Product Left or Right Handed? | Ambidextrous |
| Item Diameter | 11 Millimetres |
| Item Dimensions | 25 x 18 x 104 millimetres |
| Item Type Name | Automatic Centre Punch with Adjustable Stroke |
| Item Weight | 5 g |
| Item height | 4.1 inches |
| Line Size | 0.3mm |
| Manufacturer | Starrett |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Name | Starrett Automatischer Körner |
| Model Number | 18AA |
| Pattern | Single |
| Recommended Uses For Product | Carpentry |
| Special Features | Adjustable, Hand Free |
| Style | Classic |
| Subject Character | Starrett |
| UPC | 049659501193 779975348430 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Not Water Resistant |
| Writing Instrument Form | Marker Pen |
| Writing instrument form | Marker Pen |

## Product Details

- **Brand:** Starrett
- **Writing instrument form:** Marker Pen
- **Colour:** Black
- **Ink colour:** Black
- **Age range (description):** Adult
- **Material:** Alloy Steel
- **Point type:** punch
- **Special feature:** Adjustable, Hand Free
- **Unit count:** 1.0 count
- **Model name:** Starrett Automatischer Körner

## Images

![Starrett 18AA Automatic Centre Punch With Adjustable Stroke, 4" Length, 7/16" Diameter - Image 1](https://m.media-amazon.com/images/I/41srzhREZEL.jpg)

## Available Options

This product comes in different **Pattern, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Auto centre punch
*by S***U on 12 October 2025*

Item arrived as advertised and I’m very happy with it Thank you Good quality

### ⭐⭐⭐⭐⭐ Excellent punch, strong recommendation from me.
*by J***N on 23 October 2016*

As with other Starrett products, a well engineered punch. The "automatic" bit works just fine, leaving a significant mark in wood or steel. It is smaller than I expected (my prejudice?) but works perfectly well. Wholly recommended. I believe the tip is replaceable too - should it be needed

### ⭐⭐⭐⭐⭐ Starrett 18aa centre punch
*by P***T on 2 August 2025*

Love these, got all 3 of them, awesome tool, the 18c is by far the best, size of them inc this AA is spot on, very durable, and sharp, and can be resharpened

## Frequently Bought Together

- Starrett Automatic Center Punch with Hardened Steel Metal - 100mm Length, 11mm Punch Diameter Tapered Point - 18AA
- Starrett Steel Automatic Center Punch with Adjustable Stroke - 5-1/4" (130mm) Length, 11/16" (17mm) Punch Diameter, Lightweight, Knurled Steel Handle - 18C
- Starrett Steel Automatic Center Punch with Adjustable Stroke - 5" (125mm) Length, 9/16" (14mm) Punch Diameter, Lightweight, Knurled Steel Handle - 18A

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-21*