---
product_id: 253545336
title: "3Pcs High-Speed Steel Step Drill Bit Set with Automatic Spring Loaded Center Punch, 4-12mm/4-20mm/4-32mm Drill Bits Set for Sheet Metal Hole Drilling"
brand: "cochanvie"
price: "₪60"
currency: ILS
in_stock: true
reviews_count: 8
category: "Cochanvie"
url: https://www.desertcart.co.il/products/253545336-3pcs-high-speed-steel-step-drill-bit-set-with-automatic
store_origin: IL
region: Israel
---

# 3 step drill bits covering 4-32mm holes Automatic spring-loaded center punch HSS + Titanium coating for durability 3Pcs High-Speed Steel Step Drill Bit Set with Automatic Spring Loaded Center Punch, 4-12mm/4-20mm/4-32mm Drill Bits Set for Sheet Metal Hole Drilling

**Brand:** cochanvie
**Price:** ₪60
**Availability:** ✅ In Stock

## Summary

> 🔧 Drill Smarter, Not Harder — The Ultimate Step Bit Set for Pros Who Demand Precision

## Quick Answers

- **What is this?** 3Pcs High-Speed Steel Step Drill Bit Set with Automatic Spring Loaded Center Punch, 4-12mm/4-20mm/4-32mm Drill Bits Set for Sheet Metal Hole Drilling by cochanvie
- **How much does it cost?** ₪60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/253545336-3pcs-high-speed-steel-step-drill-bit-set-with-automatic)

## Best For

- cochanvie enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** High-speed steel with titanium nitride coating extends bit life and keeps drilling cooler.
- • **Effortless Accuracy:** Automatic spring-loaded center punch guarantees perfect hole positioning every time.
- • **All-in-One Precision:** Replace 28 drill bits with just 3 versatile step bits covering 4-32mm holes.
- • **Smooth & Fast Cutting:** Two-flute design ensures burr-free, chamfered holes with less effort and heat.
- • **Multi-Material Mastery:** Ideal for sheet metal, plastic, fiberglass, and wood—your go-to for renovation and repair.

## Overview

This 3-piece high-speed steel step drill bit set features titanium nitride coating for enhanced durability and cooler operation. Covering hole sizes from 4mm to 32mm, it replaces dozens of bits with smooth, burr-free cutting thanks to its two-flute design. The included automatic spring-loaded center punch ensures precise hole placement, making it perfect for sheet metal, plastic, fiberglass, and wood applications in automotive, home renovation, and industrial projects.

## Description

Step Drill Bit Set:Feature:- High speed, titanium nit-ride coated steel Replaces 28 separate drill bits Two fluted design for fast, smooth cutting. - When inject cold water while working, can effectively extend the service life of the drill bit. Recommend drilling rate of 250-250 RPM.- 1mm thickness can be operated by hand drill, 2~3mm please use bench drill. The drill must continue to cool down when it is working, and it is not easy to burn.- According to the need to process different diameter holes, you can achieve one-time processing of large holes, no need to replace the drill bit and positioning hole.-Automatically Deburrs Holes As You Drill -Two-Flute Design Gives You Faster And Smoother Cutting -Titanium Nitride Coating For Cooler Running -Quick-Change 1/4'' Hex Shank -High Speed Steel For Long Life -These Step Drill Bits Are Ideal For Variety Of Materials From Metal, Plastic, Fiberglass To Wood -They Also Help To Enlarge Existing Holes -The Two Flute Design Tips Can Make The Penetration Faster Without Chipping Specifications:- Shank: 1/4" Quick Change Hex Shank- Finish: Titanium- Material: HSS (Suitable for use in the hardness below 25 degrees workpiece, such as iron plate, copper plate, aluminum plate, the thickness of the plate of step is

Review: Does the job - Worked fine for me, as the hole to be enlarged was in fiberglass, therefore relatively soft. Not sure it would work as well with hard metal. The Automatic Spring Loaded Center punch is a convenient little tool to have
Review: Money well spent - Good quality.

## Features

- 【Widely Used】Perfect Step Drill Bits suitable for drill holes in various material： Wide range of uses:automotive sheet metal, repair and renovation, bridge frame, home appliance decoration. Not suitable for hard and brittle materials such as stainless steel, glass, tile floors, walls etc.
- 【Material】HSS combined with a titanium coating. More capable and durable. to reduce Burr,Chamfering,oval Chamfering that can't be done by twist drill bits
- 【Easy Drilling】Two-Flute Design for smoother cutting. High Step design let you feel the stop and never drill bigger in mistake
- 【SET INCLUDES】Bit #1 (5 steps): 4-12mm (4mm, 6mm, 8mm, 10mm, 12mm); Bit #2 (9 steps): 4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm); Bit #3 (15 steps): 4-32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm)
- 【Package Included】 3-Piece HSS Groove Step Drill Bit (4-12/ 4-20/ 4-32mm ), 1-Piece Automatic Center Punch.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VMG72GK |
| ASIN  | B07VMG72GK |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #850 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Countersink Drill Bits |
| Color | gold |
| Customer Reviews | 4.0 4.0 out of 5 stars (80) |
| Customer reviews | 4.0 4.0 out of 5 stars (80) |
| Date First Available | 23 July 2019 |
| Date First Available  | 23 July 2019 |
| Finish | Titanium |
| Item Weight | 290 g |
| Manufacturer | Cochanvie |
| Manufacturer  | Cochanvie |
| Material | High Speed Steel (HSS) |
| Number Of Pieces | 3 |
| Package Dimensions | 25 x 8.3 x 3.1 cm; 290 g |
| Package Dimensions  | 25 x 8.3 x 3.1 cm; 290 g |

## Product Details

- **Cutting angle string:** 90 Degrees
- **Cutting diameter:** 12 Millimeters
- **Finish type:** Titanium
- **Material:** High Speed Steel (HSS)
- **Shank type:** Hex

## Images

![3Pcs High-Speed Steel Step Drill Bit Set with Automatic Spring Loaded Center Punch, 4-12mm/4-20mm/4-32mm Drill Bits Set for Sheet Metal Hole Drilling - Image 1](https://m.media-amazon.com/images/I/61yyW8EFs1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does the job
*by D***7 on 30 January 2026*

Worked fine for me, as the hole to be enlarged was in fiberglass, therefore relatively soft. Not sure it would work as well with hard metal. The Automatic Spring Loaded Center punch is a convenient little tool to have

### ⭐⭐⭐⭐⭐ Money well spent
*by M***D on 5 June 2024*

Good quality.

### ⭐⭐⭐⭐ Low price - low quality
*by D***Y on 28 October 2025*

The quality is very low. Only suitable for plastic or very thin metal. But for such a low price, it's not bad.

## Frequently Bought Together

- Cochanvie 3Pcs High-Speed Steel Step Drill Bit Set with Automatic Spring Loaded Center Punch, 4-12mm/4-20mm/4-32mm Drill Bits Set for Sheet Metal Hole Drilling
- GOTOTOP 6Pcs Metric Thread Tap M3-M10 Titanium Coated Hss Drill And Tap Bits 1 4" Hex Shank Screw Taps Tool Set

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**Shop now:** [https://www.desertcart.co.il/products/253545336-3pcs-high-speed-steel-step-drill-bit-set-with-automatic](https://www.desertcart.co.il/products/253545336-3pcs-high-speed-steel-step-drill-bit-set-with-automatic)

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-03-17*