

ZONADAH 6Pcs in Set Screw Thread Tap Drill Set Titanium Coated Hex Shank HSS Screw Spiral Point Thread Imperial Plug Drill Bits Size 1/8"、5/32"、3/16"、1/4"、5/16" and 3/8"
About this item
- 6PCS IMPERIAL DRILL TAP SET Includes 6 imperial sizes: 1/8", 5/32", 3/16", 1/4", 5/16", and 3/8". A versatile set designed for drilling, tapping, deburring, and countersinking in one step.
- HSS 4341 HIGH SPEED STEEL Made from durable HSS 4341 high speed steel for improved hardness, strength, and long-lasting cutting performance when working on soft metals and general materials.
- ALL-IN-ONE OPERATION TOOL Combines drilling, tapping, deburring, and countersinking in a single operation, helping reduce tool changes, improve efficiency, and save time during repetitive tasks.
- 1/4" HEX SHANK FOR QUICK CHANGE Standard 1/4" hex shank (6.35mm) fits most electric drills and quick-change chucks, ensuring secure grip and fast bit replacement for smoother workflow.
- SUITABLE FOR MULTIPLE MATERIALS Ideal for soft metals such as aluminium sheets, iron, and similar materials. Back tapered design helps reduce thread damage and improves drilling accuracy.
Product description
The ZONADAH 6PCS Imperial Screw Tap Drill Set is designed to simplify drilling and threading operations by combining multiple functions into a single tool. This practical set allows drilling, tapping, deburring, and countersinking to be completed in one step, improving efficiency for workshop, maintenance, and fabrication tasks. Manufactured from HSS 4341 high speed steel, the drill tap bits provide reliable hardness, strength, and durability for repeated use. The spiral design helps improve cutting performance while maintaining smoother operation during metalworking tasks. The set includes 6 imperial sizes ranging from 1/8" to 3/8", making it suitable for a variety of general-purpose threading and drilling applications. A back tapered design helps reduce the risk of over-drilling and protects threads from damage during operation. Each bit features a standard 1/4" hex shank (6.35mm), compatible with most electric drills and quick-change chucks. This ensures secure fitting and easy bit replacement, helping improve workflow efficiency. Suitable for soft metals such as aluminium, iron sheets, and similar materials, this tool set is ideal for drilling, tapping, and repair work where speed and convenience are essential. Specifications Material: HSS 4341 High Speed Steel Shank: 1/4" Hex Shank (6.35mm) Total Weight: 82g Sizes: 1/8" (3.175mm) 5/32" (3.97mm) 3/16" (4.76mm) 1/4" (6.35mm) 5/16" (7.94mm) 3/8" (9.53mm) Package Includes 6 x ZONADAH Imperial Screw Tap Drills
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10 Trustpilot reviews total, with 2 shown at a time.
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
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