---
product_id: 454892814
title: "NEIKO 10198A Step Drill Bit Set | 5 Piece, 4mm- 35mm | Metric Titanium High Speed Steel Unibit, Stepper Cone Drill Bit | Two Flute Step Down Bits, 135 Degree Point"
brand: "neiko"
price: "฿4315"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/454892814-neiko-10198a-step-drill-bit-set-5-piece-4mm-35mm
store_origin: TH
region: Thailand
---

# Two-flute design for fast chip clearance Tri-flatted shank prevents slip in power tools 135° split point tip for precision & speed NEIKO 10198A Step Drill Bit Set | 5 Piece, 4mm- 35mm | Metric Titanium High Speed Steel Unibit, Stepper Cone Drill Bit | Two Flute Step Down Bits, 135 Degree Point

**Brand:** neiko
**Price:** ฿4315
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** NEIKO 10198A Step Drill Bit Set | 5 Piece, 4mm- 35mm | Metric Titanium High Speed Steel Unibit, Stepper Cone Drill Bit | Two Flute Step Down Bits, 135 Degree Point by neiko
- **How much does it cost?** ฿4315 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/454892814-neiko-10198a-step-drill-bit-set-5-piece-4mm-35mm)

## Best For

- neiko enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Titanium-coated high-speed steel construction guarantees durability and long service life on metal, wood, and plexiglass.
- • **Precision Meets Speed:** 135° split point tip ensures self-centering and faster cutting with zero walking.
- • **One Bit, Multiple Sizes:** Drill 4mm to 35mm holes seamlessly with 5 versatile step bits—no bit swapping needed.
- • **Clean & Efficient Drilling:** Two-flute design clears debris quickly for smooth, burr-free holes every time.
- • **Secure Grip, Maximum Power:** Tri-flatted shank locks firmly into your drill chuck, eliminating slip and boosting efficiency.

## Overview

The NEIKO 10198A Step Drill Bit Set features 5 titanium-coated high-speed steel bits ranging from 4mm to 35mm with a 135° split point tip for fast, precise drilling. Its two-flute design ensures quick chip removal and clean holes, while the tri-flatted shank provides a secure, slip-free fit in power tools. Perfect for professionals tackling metal, wood, and plexiglass, this set combines versatility, durability, and efficiency in one compact kit.

## Description

The NEIKO 10198A Step Up Drill Bit set is your all-in-one drill bit set, drill a range of different sizes with a single bit. Looking to expand holes or drill into metal, this drill bit in the shape of a cone has multiple sizes in one. A conical shaped bit that allows you to drill a variety of hole sizes without needing to change between bits. The tip of the drill bit drills the smallest hole and as you step or drill further down the diameter increases as you drill. 1 x 6mm shank: 4 to 12 mm, 9 steps(4, 5, 6, 7, 8, 9, 10, 11, 12mm) 1 x 6mm shank: 4 to 12 mm, 5 steps)4, 6, 8, 10, 12mm) 1 x 8mm shank: 6 to 18 mm, 7 steps(6, 8, 10, 12, 14, 16, 18 mm) 1 x 8mm shank: 4 to 22 mm, 10 steps(4,6,8,10,12,14,16,18, 20, 22mm) 1 x 10mm shank: 6 to 35 mm, 13 steps(6, 8, 10, 13, 16, 18, 20, 22, 25, 28, 30, 32, 35 mm) 1 Blow Mold Carrying Case

## Features

- 135° SPLIT POINT TIP: Each step down drill bit is made with high strength HSS and is black and cobalt-treated for added durability to ensure long service life and longevity. The design of the tip angle increases cutting speed with self-centering and prevents walking off the surface of workpiece.
- 2 FLUTE DESIGN: This metric stepper drill bit has a two-flute design that clears chips faster, smoother, and allows particles to escape easily making cleaner holes at any worksite.
- TRI-FLATTED SHANK: Each unibit optimally fits into power tools such as impact drill chucks securely and eliminates slip for higher efficiency of output.
- HSS STEP BIT: This step up drill bit set cuts through steel, sheet metal, wood, plexiglass, enlarges a hole, and other surfaces creating relatively clean holes with only a small amount of pressure and deburrs as you drill.
- MULTIPLE HOLE DRILL BIT: 6 millimeter shank: (9 steps- 4, 5 , 6, 7, 8 ,9 10, 11, 12 mm),(5 steps- 4, 6, 8, 10, 12 mm) and 8mm shank (7 steps- 6, 8, 10, 12, 14, 16, 18 mm),(10 steps- 4, 6, 8, 10, 12, 14, 16, 18, 20, 22mm) and 10mm shank (13 steps- 6, 8, 10, 13, 16, 18, 20, 22, 25, 28, 30, 32, 35 mm).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Ridgerock Tools Inc. |
| Part number | 10198A |
| Item Weight | 422 g |
| Product Dimensions | 15.29 x 12.4 x 4.39 cm; 422 g |
| Item model number | 10198A |
| Size | Straight |
| Style | Tri-Flat Shank |
| Finish | Titanium |
| Material | High Speed Steel (HSS) |
| Pattern | 4 to 35mm, 5 bits |
| Item Package Quantity | 1 |
| Number Of Pieces | 5 |
| Measurement System | Metric |
| Included components | 5 step drill bits, 1 case |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** High Speed Steel (HSS)
- **Cutting diameter:** 4 Millimeters
- **Finish type:** Titanium
- **Shank type:** Straight
- **Cutting angle string:** 135 Degrees

## Images

![NEIKO 10198A Step Drill Bit Set | 5 Piece, 4mm- 35mm | Metric Titanium High Speed Steel Unibit, Stepper Cone Drill Bit | Two Flute Step Down Bits, 135 Degree Point - Image 1](https://m.media-amazon.com/images/I/61P-q+ZGqpL.jpg)

## Available Options

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

## Frequently Bought Together

- NEIKO 10198A Step Drill Bit Set | 5 Piece, 4mm- 35mm | Metric Titanium High Speed Steel Unibit, Stepper Cone Drill Bit | Two Flute Step Down Bits, 135 Degree Point
- NEIKO 02638A 5-Inch Automatic Center Punch for Metal, Adjustable Impact Spring Loaded Center Punch Tool, Spring Punch, Center Punch Spring Loaded, Auto Center Punch

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**Shop now:** [https://www.desertcart.co.th/products/454892814-neiko-10198a-step-drill-bit-set-5-piece-4mm-35mm](https://www.desertcart.co.th/products/454892814-neiko-10198a-step-drill-bit-set-5-piece-4mm-35mm)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-26*