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Features：
1. Combination Drill & Taps Bit Set can be used to tap various threads to meet different needs - including 6 SAE sizes: 6-32NC, 8-32NC, 10-24NC, 10-32NC, 12-24NC, ¼-20NC
2. They are designed to drill, tap, deburr and counter holes on wood, copper, brass, aluminum, soft material metal sheet and plastic
3. Equipped with 1/4inch hex quick-change shank, they can work on Electric hand drill, impact drill, bench drill, electric screwdriver and other tap machines
4. They are designed to drill tap a hole through the workpiece, not suitable for drilling Blind holes (it will break the bit in drilling workpiece thick than its work range). With bench drill, they can drill 3/16” (5mm) thick maximum; with hand drill, they can drill 1/8” (3mm) thick maximum.
5. Advanced Black oxide coating technology give it rust prevention protection and classic appearance
User Guide：
Following some technique will let you save the bit:
1. Thin drill bits can break easily than thick bits, so drill more carefully while using a thinner drill bit, make sure it is perfectly straight.
2. Before start drilling, use some cutting oil. It will not only allow to drill hole easily but keep the drill bit from snapping off. It will also keep the drill from getting overheated and damaged.
3. Don’t push with much pressure since it can damage the drill bit.
4. Slowly start drilling the intro surface and then gradually increase the speed. Drilling with high speed at starting point can cause slipping off.
Barry S.
2025-08-24 10:58:16
I waited till I used these a few times before writing this review. I got a few sizes of these and they are all getting the same review. These were all used for drilling and threading narrow style aluminum door frames and 18ga steel doors. The bits were used with a Milwaukee hydraulic 1/4" impact drill/driver and Tap Magic cutting/tapping fluid. I have used many combination drill/taps in the past and I will be honest in saying that these have worked better and cleaner than the other drill/taps that I have used in the past. After multiple uses in 18ga steel the bits still performed very well and cut & threaded with very little effort. They went through the aluminum frames with ease. Sizes used were 8-32, 10-24 and 10-32. All held up well and drilled clean holes and tapped very nicely for the machine screw sizes they represented. It will take a while to use these up compared to the other brands I have used in the past, I will be buying these again.
ddechant
2025-07-07 13:07:15
Great price for the setThey seem to be very good qualityBe sure to use them on slow speed and don't force themThey did a great job for us but the key is slow and steady
darrell
2025-05-30 14:56:47
They're more than a tad brittle but at the price it's an acceptable trade off. Just don't drop them
Mark Weaver
2025-05-11 16:42:49
Great product
UCS308
2025-05-09 15:06:25
These are horrific. HORRIFIC. They are not capable of doing the job for which they are designed. They snap. Slightest pressure.. hand pressure. They snap. THEY SNAP!!!!!! BREAK. Horrific.
Megan
2025-05-01 15:26:29
Works great! I use it one either my Klein 11-in-1 screw driver or my impact on the lowest setting and it works perfect
Customer
2025-03-05 15:30:13
I like the drill, tap, and bevel function and the case. Be very careful they will break if too much force is used.
Danny
2025-02-23 16:17:26
Time saving, quality
Buyer
2025-02-06 13:09:38
Those break very easily.
Ken Randwin
2025-01-22 21:50:18
A utiliser avec huile de coupe, ils sont fragile
Donald
2024-11-20 14:10:44
Used them to tap hole in aluminum and bits just brake
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