Cle-Line
Cle-Line C21119 29PC 135 Degree Jobber Drill Set
29-piece high-speed steel jobber drill set with 135-degree split points and black oxide finish for general-purpose drilling
- TypeDrill Bits
- 29-piece set covers a wide range of drilling tasks
- 135-degree point angle reduces walking for accurate starts
- High-speed steel construction withstands high drilling temperatures
- Black oxide finish resists corrosion and extends bit life
- Jobber length design suits general-purpose drilling applications
Cle-Line C21119 29-piece drill set
This Cle-Line C21119 set provides 29 high-speed steel jobber drill bits for general-purpose metalworking. The 135-degree split point reduces walking and starts holes cleanly in steel and alloy. Machinists and maintenance technicians gain a complete range of fractional sizes in one indexed case. The black oxide finish adds lubricity and resists corrosion during storage.
Sustained drilling performance
High-speed steel construction maintains hardness at elevated temperatures generated by continuous drilling. The 135-degree point geometry distributes cutting forces evenly, reducing edge breakdown during repetitive operations. Black oxide surface treatment holds coolant effectively, extending bit life in production environments. The set withstands daily shop use without premature dulling or chipping.
Build quality and organisation
Each bit is precision ground from solid high-speed steel bar stock for concentricity and strength. The black oxide finish provides a durable, low-friction surface that resists rust between jobs. Bits are secured in a labelled metal index case that protects cutting edges during transport. The case layout allows quick size identification and prevents lost components on the bench.
Highlights
- 29-piece set covers a wide range of drilling tasks
- 135-degree point angle reduces walking for accurate starts
- High-speed steel construction withstands high drilling temperatures
- Black oxide finish resists corrosion and extends bit life
- Jobber length design suits general-purpose drilling applications
Specifications
| Brand | CLE-LINE |
|---|---|
| Type | Drill Bits |
Questions about this item
Does the 135-degree point angle on the Cle-Line C21119 bits reduce heat buildup during extended drilling sessions?
The 135-degree split point centers the bit quickly, which lowers thrust force and friction, helping to keep temperatures down during long jobs.
What type of drill chuck is required to use the Cle-Line C21119 jobber-length bits?
A standard three-jaw chuck that accepts straight-shank jobber-length bits is all that is needed; the set covers common fractional sizes.
Will the black-oxide finish on the Cle-Line C21119 set hold up when drilling older, hardened steel fasteners?
Black oxide adds lubricity and corrosion resistance, so the high-speed steel bits maintain cutting performance on tough, aged materials.
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