Six sizes, and an instruction not to bottom the tap out
DKIBBITH DKVIP-003, SAE drill-tap, 6-pack
Six combination bits covering the common small SAE threads, on a listing that tells you the single mistake that strips a thread.
Six sizes, chosen properly. 6-32, 8-32, 10-24, 10-32, 12-24 and 1/4-20 UNC covers the small machine-screw threads a fabricator actually meets, and including both #10 pitches — the coarse 24 and the fine 32 — is the right use of a sixth slot, because a set with only one of them will meet the other soon enough.
The page also contains the single most practical warning on this shelf. “Go slow, once the tap is doing its thing, make sure not to strip the threads by bottoming it out.” A combination bit cuts the thread as it advances, so in a blind hole the tap reaches the bottom and keeps turning — tearing out the thread it has just made, or snapping off inside it. In a through hole the problem does not arise. Almost no listing in this category mentions it.
Two reservations. The coating is titanium nitride, which is hard and wears off a cutting edge quickly, where the set at the same price next to it on this shelf is surface-nitrided — hardening the steel rather than coating it, which lasts longer on a tool that rubs. And two of the sentences here appear word for word on that same listing, which on a shelf of near-identical products is worth knowing.
Availability
Read on the day this page was built: $15 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text were read on 2026-10-07. The live price is at the top of the page.
