Metric Coarse Thread Hand Taps - Set of 3

Enhance your shipboard repair capabilities with our Metric Coarse Thread Hand Taps, supplied as a practical set of three (taper, plug, and bottoming) taps. Specifically designed for manual threading operations, these taps are essential for maintaining and restoring metric coarse threads in a wide range of marine machinery and equipment. Whether you are a marine engineer or a shipyard technician, this set provides the precision and reliability required for critical onboard repairs.

Each tap is manufactured from premium high-speed steel (HSS) and features precision-ground flutes for clean cutting and efficient chip evacuation. The metric coarse thread configuration is ideal for standard applications in ship systems, from engine components to deck hardware. The set is conveniently organized to help you achieve accurate threads in through-holes or blind holes, ensuring a secure fit for bolts and fasteners every time.

Trust our marine-grade cutting tools to deliver consistent performance in demanding environments. With proper cutting fluid, these taps can be used on steel, stainless steel, aluminum, and other non-ferrous metals commonly found in marine applications.

Key Features

Technical Specifications

SpecificationDetails
Product TypeMetric Coarse Thread Hand Taps (Set of 3)
Thread StandardDIN 352 (metric coarse)
Tap TypesTaper (1st), Plug (2nd), Bottoming (3rd)
MaterialHigh-Speed Steel (HSS)
Surface FinishSteam Tempered
Size RangeAvailable in common metric sizes (M3, M4, M5, M6, M8, M10, M12, M16, M20)
ApplicationHand threading of internal metric coarse threads
StorageProtective plastic tube or pouch

Frequently Asked Questions

What is included in the set?

Each set includes three hand taps of the same metric thread size: a taper tap, a plug tap, and a bottoming tap. This allows you to cut threads progressively for both through-holes and blind holes.

What is the difference between taper, plug, and bottoming taps?

The taper tap has a longer chamfer (8-10 threads) for starting threads in a fresh hole. The plug tap has a shorter chamfer (3-5 threads) that works well for general-purpose threading. The bottoming tap has no chamfer, making it suitable for cutting threads to the very bottom of a blind hole.

Can these taps be used on stainless steel?

Yes, these HSS taps can cut threads in stainless steel when used with a suitable cutting fluid or lubricant. For harder materials like stainless steel, we recommend using cutting oil to reduce friction and prolong tool life.

How do I choose the correct tap size?

Select the tap size according to the required thread diameter. For metric coarse threads, the tap is stamped with the nominal diameter and pitch (e.g., M10 x 1.5). Use a tap drill chart to drill the correct hole size before tapping.

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