⚡ Drill Like a Pro, Last Like a Legend
The BEILI M35 Cobalt 5% High Speed Steel Twist Jobber Drill Bit pack offers 10 precision-engineered 3/16" (4.76mm) bits made from durable cobalt steel. Designed for high-efficiency drilling in hardened metals and stainless steel, these bits reduce processing costs with exceptional speed and accuracy, all housed in a convenient plastic case for professional use.
J**Y
Very durable
I used these bits for door hardware installation and loved them
A**R
cost
ordered because of hardness. cheat titanium just dont last
O**R
It Works
the cobolt work on mild steel 1/8 inch hot roll.
A**R
Not good for steel.
If you're planning on drilling anything harder than aluminum, don't waste your money. I burned through 2 bits on 1 hole in 1/8 mild steel with cutting fluid.
D**S
Wears out quickly
No very durable and wore out quickly.
J**Y
Great drillbits, durable. We really like them.
Great drillbits, durable. We really like them.
J**R
Perfect for 3/16" rivets
It seems that 3/16" rivets are not really meant for a hole drilled by a 3/16" drill bit. I am guessing that the rivet is measured in metric and conversion to inches comes close to 3/16" (at least most of the rivets I buy on Amazon). This 13/64" inch bit is 1/64" larger and allows easy insertion of the 3/16" rivet that is really a 5mm rivet which would fall in between 3/16" and 13/64". And since most rivets are meant for metal, I find cobalt bits to be long lasting in metal drilling even without use of lubrication oil.
Trustpilot
1 month ago
1 day ago
