When you purchase more than 100 items, please send us a mail. We will give you the cheapest price! Factory direct sales, seeking strength partners！CAIDU CAIDU 6PCS 1/4" Hex HSS 4341 Composite Spiral Screw Tap Drill Thread M3-M10 & Screw Tap of Imperial Unit ✔Complete hole drilling, tapping, deburring and countersinking in one operation with power drill saves labor & time ✔Back tapered beyond tap to prevent thread damage from over-drilling ✔Deburr/countersink also provided on bit beyond back taper ✔Diameter:✭1/8" (3.175mm) ✭5/32" (3.97mm) ✭3/16" (4.76mm) ✭1/4" (6.35mm) ✭5/16" (7.94mm) ✭3/8" (9.53mm) ✭1/4" (6.35mm) Hex Shank ✔Self-Centering point, do not need assistant center drilling or center punching.✔Ideal for drilling, tapping, cutting on wood, soft metal, aluminum plate, iron, etc. (Note: it can not work well with stainless steel 304 or high hardness metal. ) ✔Made from hardened high-speed steel vs carbon steel for longer life ✔Complete hole drilling, tapping, deburring and countersinking in one operation with power drill saves labor & time ✔High hardness, rustproof, solid and durable high-speed steel in Quick-change 1/4"(6.35mm) Hex Shank ✔Complete hole drilling, tapping, deburring and countersinking in one operation save processing steps and time costs, improve working efficiency. ✔Self-Centering point, do not need assistant center drilling or center punching. Ideal for drilling, tapping, cutting on wood, soft metal, aluminum plate, iron, etc. (Note: it can not work well with stainless steel 304 or high hardness metal. ) ✔Back tapered beyond tap to prevent thread damage from over-drilling Package Included: 6 * Composite Tap Drill Bit Thread Spiral Screw Tap 1/4" Hex Shank
F**S
These are imperial not metric.
Not M3-M10 as the title and some photos show. These are imperial.
A**R
Does not have the function they say it has.
Does not have the function they say it has.
J**.
Works for small jobs
They work just fine
C**S
Broke the first time I used them.. on mild steal !!! So sad
Broke the first time I used them on soft metal ? Junk
D**.
Eh get what you pay for.
I’m sure the rest will be fine. But the m3 snapped into 3 pieces to skinny a bit to do all it needs to do under torque.
A**A
Sturdy bits✅
Threaded a 5/16 and a 3/8 hole on a wooden skateboard to check if the threads were made well to screw a bolt and it worked magic then on the metal/aluminium chassis of my car as I added penetrating oil in the tap before it thread the actual thread and bolts ended up screwing very well❗️Good product for small jobs.
T**X
quality product
Easy of use
Trustpilot
3 weeks ago
3 days ago