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🔩 Drill Like a Pro, Shine Like Gold!
The Rennie Tools 10pc 4.2mm HSS Gold Cobalt Jobber Drill Bit Set delivers professional-grade performance with M35 alloyed steel containing 5% cobalt for exceptional hardness and heat resistance. Engineered to DIN338 specs with a 135° split point for precise, walk-free drilling and a 2-flute design for rapid chip removal, this set excels on stainless steel, hard metals, aluminium, and more. Packaged in a sleek case, it’s the ultimate upgrade for managers and makers who demand efficiency and durability.
| Manufacturer | Rennie Tool Company |
| Part number | BOX10COBJOBBER |
| Item Weight | 70 g |
| Package Dimensions | 10.4 x 6.2 x 1 cm; 70 g |
| Manufacturer reference | BOX10COBJOBBER |
| Size | 4.2mm x 75mm Cobalt Jobber Drills |
| Colour | Gold |
| Finish | Gold,Hss,Stainless Steel |
| Material | Cobalt |
| Item Package Quantity | 1 |
| Number of Pieces | 10 |
| Batteries included? | No |
| Batteries Required? | No |
A**R
The very best drills out there
Needed to drill out hardened steel studs from a cylinder head , tried an apparently good brand , all failed , but, these are super sharp and super hard , proper cobalt strength, drilled through a hardened m10 bolt head and a spanner no trouble at all no coolant needed, best I've ever used. All ten arrived perfect condition in a nice slide out tray, I will always get these from now on .
R**W
This is the drill you need.
What can I say, the drill is sharp and can drill through most metal sheets like butter. I used for a 3mm steel bracket which I struggle to drill with my previous drills and it ripped through it in no time.
A**A
Seem decent enough
Good price and fast delivery … time will tell how good they are
A**R
Great quality products
Super quality
T**M
Sharp bits
Nice and sharp, had no trouble cutting through cast aluminium
K**Y
Drills
Great quality drill bits.
R**Z
As expected
Great bits, did the job
C**R
Some are useable
Used on hard plastic, 4mm thick, only used 3 of the 10, 1st snapped after lots of usage, 2nd wouldn't cut into the material only left a dent from pressure turned out to be flat, nothing snapped off, looking at the other bits no more were flat but the point angles varied massively, 3 were practically flat with the slightest of points, 3rd has lasted and remained sharp since, binned another that had a elongated spiral.In general quality control is inconsistent, you may end up up with more or less duds, cannot be certain how long each bit will remain sharp or how likely they will snap.If the rest do not snap before going blunt I would consider them worth the price.
Trustpilot
4 days ago
2 weeks ago