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CLE-LINE High-Speed Steel Taper-Shank Drill Bit - High-Speed Steel Taper-Shank Drill Bits
CLE-LINEHigh-Speed Steel Taper-Shank Drill Bits

CLE-LINE High-Speed Steel Taper-Shank Drill Bit

The CLE-LINE Taper Shank Drill Bit is a high-speed steel taper-shank drill bit with a 36 mm diameter, 118° point, black oxide finish, and MT4 shank. It is identified by manufacturer part number C21978 and includes…

SKU 3G-OTH-213736

Also listed as: C 21978 · C-21978

Brand
CLE-LINE
Item
High-Speed Steel Taper-Shank Drill Bit
Part Number
C21978
Category
High-Speed Steel Taper-Shank Drill Bits
Available to Order
Also known as:C21978CLE-LINE
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

CLE-LINE
Manufacturer Part Number
C21978

Technical Documents

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CLE-LINE Taper Shank Drill Bit is a high-speed steel taper-shank drill bit with a 36 mm diameter, 118° point, black oxide finish, and MT4 shank. It is identified by manufacturer part number C21978 and includes the specification.4173.

Frequently Asked Questions

What is the CLE-LINE Taper Shank Drill Bit used for?

The CLE-LINE Taper Shank Drill Bit is used for drilling large-diameter holes in metal, typically in industrial machining, tool-and-die, and heavy fabrication. Its MT4 shank fits directly into machine spindles, eliminating the need for a chuck. The 118° point and black oxide HSS construction suit general-purpose drilling in steel and alloys.

What are the specifications of the CLE-LINE Taper Shank Drill Bit?

The CLE-LINE Taper Shank Drill Bit has a 36 mm diameter, 118° point angle, black oxide finish, and an MT4 (Morse Taper No. 4) shank. It is made from high-speed steel (HSS) and carries manufacturer part number C21978. The specification attr1235323 is 1.4173, indicating the material or coating standard.

Where to buy the CLE-LINE Taper Shank Drill Bit worldwide?

You can source the CLE-LINE Taper Shank Drill Bit worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine CLE-LINE tooling to industrial buyers internationally.

How to select the correct taper shank drill bit for a machine?

Select a taper shank drill bit by matching the Morse taper number (e.g., MT4) to your machine spindle's socket. Ensure the drill diameter (e.g., 36 mm) is within the machine's capacity. For CLE-LINE bits, verify the shank size and point angle (118°) suit your material. Always check the manufacturer part number, such as C21978, for exact specifications.

Used in

Common applications for CLE-LINE
Structural steel fabrication — CLE-LINE cobalt annular cutters for drilling bolt holes in beams and girders
Maintenance and repair — CLE-LINE taper-shank drill bits for reaming and drilling in machine shops
Metalworking — CLE-LINE tap wrenches for manual threading of holes in steel plates
Construction — CLE-LINE HSS drill bits for drilling into mild steel and alloy steel components
Automotive repair — CLE-LINE annular cutters for cutting holes in chassis and frame members
General machining — CLE-LINE taper-shank drill bits for use on drill presses and lathes
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CLE-LINE Products

3G Electric supplies CLE-LINE high-speed steel taper-shank 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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