Chicago-Latrobe
Chicago-Latrobe 47796 29PC 135 Degree Cobalt Drill Bit Set
29-piece cobalt steel drill bit set with 135-degree split points for heavy-duty jobber length drilling
- TypeDrill Bits
- MaterialCobalt Steel
- 29-piece set covers a wide range of drilling tasks
- 135-degree split point starts accurately without wandering
- Cobalt steel construction resists heat and wear in tough materials
- Straw bronze finish reduces friction and improves chip evacuation
- Jobber length design suits standard drill chucks and general-purpose work
29-Piece Cobalt Jobber Drill Set
This Chicago-Latrobe 47796 set contains 29 cobalt steel jobber length drill bits with a 135-degree point angle and a straw-bronze finish. The cobalt material provides high heat resistance and wear resistance for drilling hard metals such as stainless steel and cast iron. The set is supplied new and covers a range of diameters for general workshop use.
Suited for metalworkers drilling hard alloys
Mechanics and fabricators who regularly drill stainless steel, titanium or high-strength alloys will benefit from the cobalt construction and 135-degree split point. Buyers who only drill wood, plastic or soft aluminium will not need the extra heat resistance and can use standard high-speed steel bits instead.
135-degree split point for hard-metal drilling
The 135-degree point angle reduces walking and lowers the thrust required to start a hole in tough materials. This geometry is the key specification that determines whether the set matches the hardness of the workpiece you are machining.
Highlights
- 29-piece set covers a wide range of drilling tasks
- 135-degree split point starts accurately without wandering
- Cobalt steel construction resists heat and wear in tough materials
- Straw bronze finish reduces friction and improves chip evacuation
- Jobber length design suits standard drill chucks and general-purpose work
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | Cobalt Steel |
Questions about this item
What chuck size will hold the 29 cobalt bits in the 47796 set?
All 29 bits have jobber-length shanks that fit standard 13 mm drill chucks; no special adapter is required.
How do I keep the 135-degree split points from walking on hard metal?
Start each hole with light pressure at low speed until the split point seats, then increase feed; skipping this step causes the bit to skate.
When should I replace a dull bit from the 47796 set?
Replace a bit when the straw-bronze finish wears off the cutting lips or the 135-degree point no longer self-centres in steel.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
