🔧 Drill Like a Pro: Elevate Your Metalworking Game!
The HSS M35 Cobalt Twist Drill Bits pack includes five high-speed steel drill bits, specifically designed for drilling tough metals and stainless steel. Made from premium M35 cobalt steel, these bits offer unmatched durability and precision, making them ideal for heavy-duty applications. With a size of 10mm (25/64"), they are engineered to reduce processing costs while maximizing efficiency.
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 day ago
1 week ago
