Irwin 7/16" x 5-1/2" Cobalt HSS 135 Degree Drill Bit (63128)

The Irwin 7/16" x 5-1/2" Cobalt HSS 135 Degree Drill Bit (63128) is a high-performance cutting tool engineered for precision drilling in the most demanding materials. Crafted from M-35 High-Speed Steel with a 5% cobalt alloy, this bit is built to withstand extreme heat and abrasion, which are common challenges when working with hardened metals. The 135-degree split point design is a key feature, as it eliminates the need for a center punch and prevents the bit from "walking" or straying from the intended start point.

KEY FEATURES AND BENEFITS:

• Exceptional Heat Resistance: The 5% cobalt content allows the bit to maintain its hardness and cutting ability at high temperatures, extending its life when drilling hard metals like stainless steel and titanium.
• Precision and Stability: The 135-degree split point design provides a self-centering action, preventing the bit from wandering on the workpiece and allowing for precise hole starts without the need for a pilot hole.
• Reduced Friction: A gold oxide finish minimizes friction and heat buildup, which helps to maintain the integrity of the cutting edge and ensure smooth, efficient drilling.

SPECIFICATIONS:

• Drill Diameter: 7/16 inches
• Overall Length: 5-1/2 inches
• Flute Length: 4-1/16 inches
• Shank Diameter: 7/16 inches
• Point Angle: 135 degrees
• Cutting Direction: Right-Hand (Clockwise)
• Included in shipment: (1) Irwin 7/16" x 5-1/2" Cobalt HSS 135 Degree Drill Bit

HOW TO USE:

1. Secure the workpiece: Firmly clamp or vise the material to prevent movement while drilling.
2. Insert the bit: Choose a compatible drill and insert the 7/16-inch shank into the chuck, tightening it securely.
3. Adjust the drill speed: Use a slower RPM setting to minimize heat buildup when drilling hard metals.
4. Begin drilling: Apply steady, firm pressure to let the 135-degree split point self-center and penetrate the material cleanly.
5. Use lubrication: Apply cutting fluid when drilling metals like stainless steel to reduce friction and heat.
6. Clear chips: Periodically withdraw the bit to remove chips from the flutes and prevent clogging.
7. Finish and retract: Once the hole is complete, carefully pull the bit out and turn off the drill.

BENEFITS OF USING IRWIN 7/16" X 5-1/2" COBALT HSS 135 DEGREE DRILL BIT (63128):

• Delivers superior performance on tough materials like stainless steel and titanium.
• Extended tool life due to its 5% cobalt-enhanced M-35 steel construction.
• Eliminates the need for center punching with its self-centering split point.
• Reduces tool replacements and increases efficiency with exceptional heat and abrasion resistance.
• Produces cleaner, more accurate holes, contributing to professional-quality work results.

FEATURES:

• Designed for Hard Metals: Optimized for demanding applications, this bit is the ideal choice for drilling into hardened steel, alloys, and other materials that are difficult to penetrate with standard drill bits.
• Efficient Chip Removal: The heavy-duty spiral flute design is engineered for rapid and effective chip ejection, preventing clogging and ensuring continuous cutting performance.