5/32" x 50mm Alpha Cobalt Left Hand Jobber Drill Bit - 1 Pack Carded 9LI532COL
$16.00
In stock
SKU
12LH532AC1
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- Alpha Left Hand Drill Bit for the removal of damaged bolts, studs and screws
- Features / Benefits:
- Ideal for Stainless Steel and Hi-Tensile Steel
- Fully ground HSS Cobalt increases strength and drill life
- Improves heat resistance for increased strength and drill life
- 135 Deg Split Point cuts faster and reduces wandering
- Directions for use:
1. If possible, grind or flatten the head of the damaged bolt or screw.
2. Use a heavy hammer and centre punch to mark the centre of the bolt or screw. This will prevent the drill from wandering.
3. Drill into the bolt or screw in reverse using a small size left-hand drill with a variable speed reversible drill.
4. If the bolt does not reverse out, use the small hole as a pilot hole and change to a larger size left-hand drill. Most bolts come out before the hole drilling operation is finished.
5. The drill will grab the bolt when breaking through the backside. Typically, this is the stage when the broken fastener will spin out of the threaded hole. When drilling through the broken bolt, vibration will help to break the bolt free.
Note: If this drilling operation has not removed the broken stud or bolt, the hole drilled will form a pilot hole for a screw extractor - Cutting Fluid: When drilling into ferrous metals we recommend the use of a cutting fluid or compound to aid in the efficiency of the drill and to prolong its working life. We recommend Alpha CDT cutting fluid (Code ATL005)
- Specifications: Every effort has been made to ensure all specifications on our site are accurate and to the relevant standard, they should only be used as a guide. If you see any problems or wish to query something, please contact us
- Additional Information: Click on the data sheet tab for a PDF with additional information
- Photos: All photos are for illustration purpose only. Actual product may vary due to product enhancement
- Updating our site: If you see any problems with any of our specifications or you require additional information please contact us
- Disclaimer: Technical data and specifications were researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Bolt and Nut Australia is not responsible for any loss, claim or damages arising therefrom. In developing this information, Bolt and Nut Australia has made a determined effort to present it accurately
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| System of Measurement | Imperial |
|---|---|
| Product | Left Hand Cobalt Drill Bit |
| Size | 5/32" |
| Material | Cobalt High Speed Steel |
| Length (l) | 50mm |
| Flute Length (fl) | 25mm |
| Drill Chuck Size | 3/8" |
| Suitable For | Stainless, High Tensile Steel and Cast Iron |
| Point | 135 deg. Split Point |
| Unique Features | Removal of damaged bolts (stud) and screws |
| Closest size in mm | 3.97mm |
| Packaging | Carded |
| Brand | Alpha |