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M35 HSS-CO
M35 cobalt-containing stainless steel twist drill is one of the twist drills. It is named after the cobalt contained in the material. Most of them are used to process stainless steel. they have higher hardness and higher precision.
M35 cobalt-containing alloy is more wear-resistant
The addition of cobalt greatly improves the high temperature resistance and anti-abrasion properties of the drill, they have higher hardness and higher precision.
Spiral flutes, edge flutes
Enlarge the chip flute to prevent chip accumulation, drilling smoothly, and the edge groove design can effectively prevent the accumulation of chips.
Universal round shank for tight grip and no slippage
Universal round shank design, easy to hold, fast and stable installation during processing, and not easy to damage.
Sharpened head for sharper cutting
Sharp and wear-resistant, not easy to chip, scientific design, keep improving.
Product Information:
Stainless steel special drill
High hardness, high strength, suitable for drilling operations of various materials
Anti-slip chamfered round handle
The clamping is tightened without slipping, and the shank is quenched at high temperature to strengthen the anti-break treatment.
Double edge grooving process
Easier to remove chips, improve punching efficiency, and work more smoothly
M35 cobalt drill bits are suitable for
- Stainless steel
- Aluminum alloy
- iron
- copper
- die steel
Joe M.
2025-09-02 16:38:41
I needed it to widen the hole on a locking block for my gun frame, I tried two other drill bits and they didn't make a scratch on it, ordered this as soon as I started drilling I could see the difference it went through it like butter and the drill bit is still just as sharp as it was before I used it. Excellent bit I will absolutely order again if I need different sizes or anything
Jack of Trades
2025-08-24 17:47:41
These 4.2mm Metric M35 Cobalt Steel drill bits are excellent! They handle heat and tough materials with ease, providing clean, precise holes every time. The two-pack is a great value. Highly recommended for both professional and DIY use!
Matt K. in Las Vegas, NV
2025-07-07 15:16:23
The 4mm and 5mm drill bits that I bought from this excellent vendor are very well made. I used the 5mm to widen the axle hole in a cast iron piano pedal. The hole was very clean because the bit is extremely sharp. The 5mm brass sleeve fit perfectly. The brass axle I installed with Titebond 660 made the repair permanent and now the pedal functions as it was designed. The item description was exactly correct. Thanks for helping me.
Retired Engineer
2025-07-06 12:40:16
Ordered the 17/32 inch bit. Bit did not have reduced shank as advertised and does not fit in 1/2 chucks.
DD MORE
2025-06-30 14:56:59
Good budget priced bits.
Richard P Bishop
2025-06-01 13:10:58
Works great so far.
Richard Underwood
2025-04-22 15:16:24
Couldn’t find an exact 5mm drill bit anywhere local. These were perfect!
Robert D. Spessard
2025-04-12 11:24:53
Great Product
Mr. Andy
2025-03-25 10:16:37
Centered and sharp.
GREG
2025-03-09 15:49:43
Muy recomendable
Discoverer
2025-03-08 13:04:03
very sharp & feels quality bit.
Fernando
2025-02-19 10:39:33
buena calidad
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