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CLE-LINE C30528 Left-Hand Cobalt Mechanics-Length Drill Bit - Left-Hand Cobalt Mechanics-Length Drill Bits
CLE-LINELeft-Hand Cobalt Mechanics-Length Drill Bits

CLE-LINE C30528 Left-Hand Cobalt Mechanics-Length Drill Bit

The CLE-LINE Mechanics Length Drill Bit (MPN C30528) is a 7/16" left-hand cobalt bit with a 135° split point and straw/bronze finish, designed for industrial drilling applications. 3G Electric interprets customer…

SKU 3G-OTH-196720

Also listed as: C 30528 · C-30528

Brand
CLE-LINE
Item
C30528 Left-Hand Cobalt Mechanics-Length Drill Bit
Part Number
C30528
Category
Left-Hand Cobalt Mechanics-Length Drill Bits
Available to Order
Also known as:C30528CLE-LINE
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

CLE-LINE
Manufacturer Part Number
C30528
Type
Straw/Bronze Cobalt, Left Hand
Split Point
135°

Technical Documents

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CLE-LINE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CLE-LINE Mechanics Length Drill Bit (MPN C30528) is a 7/16" left-hand cobalt bit with a 135° split point and straw/bronze finish, designed for industrial drilling applications. 3G Electric interprets customer demand and delivers this bit across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as a trust anchor.

Frequently Asked Questions

What is a CLE-LINE C30528 left-hand drill bit used for?

The CLE-LINE C30528 is a 7/16" mechanics-length left-hand drill bit with a 135° split point and straw/bronze cobalt finish. It is designed to remove broken bolts or screws by drilling in reverse, common in automotive and industrial repair applications.

What are the specifications of the CLE-LINE C30528 drill bit?

The CLE-LINE C30528 is a 7/16" (0.4375 inch) mechanics-length left-hand drill bit with a 135° split point and straw/bronze cobalt finish. It is made from cobalt steel for heat resistance and durability in hard materials.

Where to buy CLE-LINE C30528 left-hand drill bits worldwide?

3G Electric supplies the CLE-LINE C30528 left-hand drill bit to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this item.

How to use a left-hand drill bit like the CLE-LINE C30528?

To use a left-hand drill bit like the CLE-LINE C30528, set your drill to reverse rotation. Apply steady pressure and low speed to drill into the broken fastener. The left-hand rotation often helps extract the fastener without additional tools.

Used in

Common applications for CLE-LINE
General maintenance and repair — CLE-LINE Black & Gold HSS jobber-length drill bits (e.g., C18092) for drilling steel, aluminum, and plastics.
Structural steel fabrication — CLE-LINE Silver & Deming drill bits (e.g., C27602) for large-diameter holes in plate and beams.
Stainless steel and hard alloy drilling — CLE-LINE cobalt jobber-length drill bits (e.g., C23323) with 135° split point for heat resistance.
Portable magnetic drilling — CLE-LINE cobalt annular cutters (e.g., C34147) with pilot pin for holemaking in steel plate.
Metric equipment assembly — CLE-LINE metric jobber-length drill bits (e.g., C74017) for matching metric fasteners and components.
Heavy equipment maintenance — CLE-LINE 3-flats shank drill bits for secure chucking in portable drills under high torque.
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CLE-LINE Products

3G Electric supplies CLE-LINE left-hand cobalt mechanics-length drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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This left-hand cobalt drill bit features a 135° split point and straw/bronze finish. Designed for mechanics-length applications, it is used for drilling in reverse to extract broken bolts or screws in metalworking and repair tasks
CLE-LINE
This left-hand cobalt drill bit features a 135° split point and straw/bronze finish. Designed for mechanics-length applications, it is used for drilling in reverse to extract broken bolts or screws in metalworking and repair tasks
This left-hand cobalt drill bit is designed for mechanics-length drilling applications, particularly for removing broken bolts or screws by drilling in reverse. The 135° split point reduces walking and improves cutting efficiency. The straw/bronze finish provides heat resistance and durability for use in metalworking and maintenance tasks
CLE-LINE
This left-hand cobalt drill bit is designed for mechanics-length drilling applications, particularly for removing broken bolts or screws by drilling in reverse. The 135° split point reduces walking and improves cutting efficiency. The straw/bronze finish provides heat resistance and durability for use in metalworking and maintenance tasks

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