Description
Sutton Tools
Sutton HSS Hand Tap — 3/4-16 UNF Taper
Part No: T4311905 | Barcode: 9311963008875 | Brand: Sutton Tools
Sutton premium high-speed steel hand tap for cutting internal threads in steel, cast iron, brass, aluminium and most engineering metals. Ground from solid HSS with a bright finish and ISO529 straight flutes for accurate, repeatable threads. This 3/4-16 UNF Taper variant covers the UNF / UNS (Unified Fine / Special) thread standard — American Unified Fine and Special-pitch threads — automotive, aerospace and instrumentation use where fine adjustment and high strength are required.
HSS Material
Ground From Solid
ISO529 Straight Flute
Bright Finish
6H Tolerance
Hand or Machine Use
Key Features & Benefits
- M2 High-Speed Steel construction — long edge life cutting steel up to 1000 N/mm² without premature dulling.
- Ground from solid — Sutton’s signature ground-from-solid process delivers concentric flutes and consistent thread form.
- ISO529 straight flute — industry-standard geometry suits both hand tapping and powered use in most engineering metals.
- 6H tolerance class — produces a class-fit thread that mates accurately with standard fasteners.
- Australian made — manufactured at Sutton’s Thomastown plant — same family business that has supplied Australian trades since 1917.
When to Use This HSS Hand Tap
Use this tap when cutting accurate threads in tougher engineering metals — mild and tool steels, stainless, cast iron, brass, aluminium and bronze — where carbon-steel taps would dull quickly. The taper lead-in makes it the natural starter tap; follow with the intermediate (second) and bottoming (plug) tap from the same series for blind holes. This particular variant (T4311905) cuts a 3/4-16 UNF Taper thread.
Pro Tip: Use a quality cutting fluid (Sutton recommends sulphurised oil for steels and a wax stick or kerosene for aluminium) and back the tap off a quarter-turn every one to two full turns to break the chip — this prevents heat build-up and stops the flutes packing up in deeper holes.
Authorised Sutton Tools Dealer — This product is sourced directly from Sutton Tools Australia, an Australian-owned family business manufacturing cutting tools in Thomastown, Victoria since 1917, and is backed by full Australian manufacturer warranty and local support.
Product Specifications
| Part No. | Size / Pitch | Thread | Form | Barcode |
|---|---|---|---|---|
| T4310476 | 3/16-32 | UNS | Taper | 9311963012605 |
| T4310635 | 1/4-28 | UNF | Taper | 9311963006840 |
| T4310794 | 5/16-24 | UNF | Taper | 9311963007588 |
| T4310953 | 3/8-24 | UNF | Taper | 9311963005751 |
| T4311111 | 7/16-20 | UNF | Taper | 9311963009247 |
| T4311270 | 1/2-20 | UNF | Taper | 9311963008868 |
| T4311429 | 9/16 | UNF | Taper | 9311963010076 |
| T4311588 | 5/8-18 | UNF | Taper | 9311963010083 |
| T4311905 ★ | 3/4-16 | UNF | Taper | 9311963008875 |
| T4320476 | 3/16-32 | UNS | Intermediate | 9311963020792 |
| T4320635 | 1/4-28 | UNF | Intermediate | 9311963004907 |
| T4320794 | 5/16-24 | UNF | Intermediate | 9311963004273 |
| T4320953 | 3/8-24 | UNF | Intermediate | 9311963005386 |
| T4321111 | 7/16-20 | UNF | Intermediate | 9311963006567 |
| T4321270 | 1/2-20 | UNF | Intermediate | 9311963005249 |
| T4321429 | 9/16-18 | UNF | Intermediate | 9311963012612 |
| T4321588 | 5/8-18 | UNF | Intermediate | 9311963007069 |
| T4321905 | 3/4-16 | UNF | Intermediate | 9311963007076 |
| T4322223 | 7/8-14 | UNF | Intermediate | 9311963010465 |
| T4322540 | 1-12 | UNF | Intermediate | 9311963014838 |
| T4330476 | 3/16-32 | UNS | Bottoming | 9311963019444 |
| T4330635 | 1/4-28 | UNF | Bottoming | 9311963004723 |
| T4330794 | 5/16-24 | UNF | Bottoming | 9311963004914 |
| T4330953 | 3/8-24 | UNF | Bottoming | 9311963003764 |
| T4331111Tap | 7/16-20 | UNF | Bottoming | 9311963003313 |
| T4331270 | 1/2-20 | UNF | Bottoming | 9311963006857 |
| T4331429 | 9/16-18 | UNF | Bottoming | 9311963007595 |
| T4331588 | 5/8-18 | UNF | Bottoming | 9311963006130 |
| T4331905 | 3/4-16 | UNF | Bottoming | 9311963007601 |
| T9040483 | 10-32 | UNF | Set | 9311963012704 |
★ You are viewing the highlighted variant. Other sizes in this series are also available.
Browse our full range of taps & dies at Alltools Geelong.
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