
CLE-LINE
Frequently asked questions
Common questions about CLE-LINE from 3G Electric.
What materials are CLE-LINE cobalt annular cutters designed to cut?
CLE-LINE cobalt annular cutters are made from high-speed steel with cobalt content, which enhances hardness and heat resistance. They are intended for cutting hard materials such as stainless steel, alloy steels, and other ferrous metals that generate high temperatures during machining. The cobalt composition allows the cutters to maintain edge integrity at elevated cutting speeds, reducing wear and extending tool life compared to standard HSS cutters. These cutters are available in diameters from 15/64 inch to 1 3/4 inch, with cutting depths up to 2 inches, and include pilot pins for alignment. They are suitable for use with magnetic drilling machines and portable drills in structural steel fabrication and maintenance applications.
What shank types are available for CLE-LINE taper-shank drill bits?
CLE-LINE taper-shank drill bits are manufactured with Morse taper shanks, specifically MT1, MT3, and MT4 sizes, as seen in models like C21950 (MT1), C21971 (MT3), and C20589 (MT4). These shanks are designed to fit into corresponding taper sockets on drill presses, lathes, and milling machines, providing secure torque transmission and concentricity. The bits feature a 118° point angle, which is standard for general-purpose drilling in steel and other metals. The black oxide finish on these bits reduces friction and improves chip flow. Diameters range from 10.5 mm to 1.3906 inches, with decimal equivalents provided for precise sizing.
Are CLE-LINE tap wrenches adjustable or fixed?
CLE-LINE tap wrenches, such as model C67200, are fixed-style with straight handles and a tap capacity of 1 to 2.5 inches. Fixed tap wrenches have a non-adjustable jaw that holds the tap securely, making them suitable for manual tapping operations where consistent torque application is required. The straight handle design provides a comfortable grip for turning. These wrenches are typically used for threading holes in metal parts, and the fixed capacity ensures compatibility with taps within the specified range. CLE-LINE does not offer adjustable tap wrenches in the current product lineup.
What finishes are available on CLE-LINE annular cutters?
CLE-LINE annular cutters are offered with two primary finishes: bright and steam oxide. Bright finish cutters, such as model C34147, have a polished surface that reduces friction and is suitable for general-purpose cutting in softer materials. Steam oxide finish cutters, like model C34101, have a dark oxide coating that improves lubricity and corrosion resistance, making them better suited for harder materials and higher cutting speeds. Both finishes are applied to cobalt HSS cutters, and the choice depends on the material being cut and the desired tool life. The cutters include pilot pins for alignment and are available in diameters from 15/64 inch to 1 3/4 inch.
Can CLE-LINE drill bits be used in CNC machines?
Yes, CLE-LINE taper-shank drill bits are compatible with CNC machines that have Morse taper spindles or adapters. The MT1, MT3, and MT4 shanks provide a standardized interface for automated tool changes and high-speed drilling. The 118° point angle is suitable for CNC operations in steel and other metals, though for specific materials like aluminum or hardened steels, point geometry adjustments may be needed. The black oxide finish helps with chip evacuation and reduces heat buildup. For CNC applications, ensure the drill bit diameter and shank size match the machine's tool holder specifications. CLE-LINE bits are not designed for high-precision or micro-drilling but are adequate for general machining tasks.
Does 3G Electric supply CLE-LINE products?
Yes — 3G Electric (S) Pte. Ltd. supplies CLE-LINE products. We stock the CLE-LINE catalog and supply genuine factory-original products with full manufacturer warranty and technical support.
















































