---
product_id: 3939825
title: "Automatic Center Punch with Hardened Steel Metal - 100mm Length, 11mm Punch Diameter Tapered - 18AA"
brand: "starrett"
price: "KSh11519"
currency: KES
in_stock: true
reviews_count: 13
category: "Starrett"
url: https://www.desertcart.co.ke/products/3939825-automatic-center-punch-with-hardened-steel-metal-100mm-length-11mm
store_origin: KE
region: Kenya
---

# 11mm punch diameter 100mm precision length Adjustable impact force Automatic Center Punch with Hardened Steel Metal - 100mm Length, 11mm Punch Diameter Tapered - 18AA

**Brand:** starrett
**Price:** KSh11519
**Availability:** ✅ In Stock

## Summary

> ⚡ Punch Perfectly, Every Time — Own the Mark of Precision!

## Quick Answers

- **What is this?** Automatic Center Punch with Hardened Steel Metal - 100mm Length, 11mm Punch Diameter Tapered - 18AA by starrett
- **How much does it cost?** KSh11519 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/3939825-automatic-center-punch-with-hardened-steel-metal-100mm-length-11mm)

## 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

- • **Durability That Lasts:** Hardened steel construction resists corrosion and wear for long-term reliability.
- • **Ergonomic Grip Design:** Lightweight, knurled handle ensures a secure hold and fatigue-free use during extended projects.
- • **Tailored Impact Control:** Adjustable knurled cap lets you customize force for any material, from metal to wood.
- • **Trusted Industry Standard:** Starrett’s legacy of precision tools guarantees professional-grade performance you can rely on.
- • **Effortless Precision Punching:** Automatic strike mechanism delivers consistent, accurate marks every time.

## Overview

The Starrett Automatic Center Punch (18AA) is a 100mm hardened steel tool featuring an automatic internal striking mechanism and adjustable force control. Designed for precision marking on metals, plastics, and wood, it offers consistent, repeatable indentations with a durable, corrosion-resistant build trusted by professionals worldwide.

## Description

Product Description The Starrett Automatic Center Punch with Adjustable Stroke features a lightweight, knurled steel handle for a positive grip and easy handling. 100mm (4") Length, 11mm (7/16") Diameter. Starrett punches are of the highest quality on earth. As simply as they are, punches are designed for specific applications. The drives are heat treated and seasoned to absorb repetitive shock. Punches are available in a variety of types like drive pin, center, nail set, and others. Starrett tools are essential for the many products that are measured, cut, formed or assembled. They are used in a broad range of manufacturing facilities as an essential part of metalworking, the manufacturing of durable goods, for working with exotic materials and in a wide variety of traditional and newer industries such as electronics, aerospace, energy and many others. The L.S. Starrett Company, founded in 1880, manufactures more than 5,000 variations of Precision Tools, Gages, Measuring Instruments and Saw Blades for industrial, professional and consumer markets worldwide. From the Manufacturer These punches are universally used and are well-proportioned for ease of use

Review: It's an autopunch but you still need to do the work. - Why did you pick this product vs others?: Anyone who knows the Starrett brand knows that their products are of the finest quality and design and this is autopunch is no exception. I do a reasonable amount of control panel design and construction requiring starter punches prior to drilling/tapping fastener holes and this punch makes me smile every time I use it. Solid construction, fluid action with a point that resists deformation.
Review: Right tool for the right job! - Punch is nice and very affective, works easily, good deal

## Features

- Heavy Duty - The Automatic Center Punch is made from steel that resists corrosion, wear and tear. It is durable and can provide users with satisfying results.
- Automatic Mechanism - The Starrett Center Punch has an internal mechanism that automatically strikes a blow when downward pressure is applied, making it easy to use in any workshop application.
- Adjustable Force - The force of the blow can be adjusted when used for different materials by turning the knurled cap. With this setting, it can create a perfect mark on any surface.
- Precision Marking - The spring tension which regulates the blow provides a constant with each strike, ensuring uniformity in depth and size for each setting. This makes it the perfect tool for precision marking.
- Wide Range of Application - This tool can help you make a small indentation to accurately spot the location of a hole in metals, plastics, wood, and other machinable materials.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0006J4Q5U |
| Best Sellers Rank | #81,621 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #35 in Center Punches |
| Date First Available | November 9, 2004 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.16 ounces |
| Item model number | 18AA |
| Manufacturer | Starrett |
| Product Dimensions | 1 x 0.7 x 4.1 inches |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Starrett
- **Color:** Black
- **Ink Color:** Black
- **Writing Instrument Form:** Marker Pen

## Images

![Automatic Center Punch with Hardened Steel Metal - 100mm Length, 11mm Punch Diameter Tapered - 18AA - Image 1](https://m.media-amazon.com/images/I/41srzhREZEL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's an autopunch but you still need to do the work.
*by J***! on July 4, 2025*

Why did you pick this product vs others?: Anyone who knows the Starrett brand knows that their products are of the finest quality and design and this is autopunch is no exception. I do a reasonable amount of control panel design and construction requiring starter punches prior to drilling/tapping fastener holes and this punch makes me smile every time I use it. Solid construction, fluid action with a point that resists deformation.

### ⭐⭐⭐⭐⭐ Right tool for the right job!
*by T***Y on September 29, 2025*

Punch is nice and very affective, works easily, good deal

### ⭐⭐⭐⭐⭐ typical Starrett
*by K***E on January 4, 2010*

Excellent machining on the tool, like all of the Starrett tools that I own. And, like all Starrett's I own, it comes without an instruction manual. I guess that they figure if you're buying Starrett, you don't need instructions. :-) The tool has a very wide range of operation, when you turn the top knob to adjust the striking force. It would likely dimple soft wood very significantly, at its lowest setting though. The point is very sharp and you can mark soft items quite well, by simply applying a little downward force that isn't sufficient to compress and release the spring that strikes the tip. The tool is very light and easy to handle, with lots of gripping area, if needed. A pocket clip would have been a welcome addition to the tool, but other than that, I can't think of any cons. It's a very nice tool.

## 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 Kenya*
*Store origin: KE*
*Last updated: 2026-03-05*