Irwin 30518ZR 9/32 Left Hand Cobalt Mech Drill Bit (3-9/16 in / 135 deg)

Product Description

Irwin 30518ZR is a 9/32 inch left-hand mechanics-length drill bit constructed from M-42 (8% cobalt) high-speed steel. It features a 135-degree split point and a heavy-duty spiral flute for chip ejection, intended for drilling and screw-extractor use in metalworking. The bit has a cylinder shank, two flutes, and a gold oxide finish to improve cutting performance and abrasion resistance in tough metals.

• Constructed of M-42 (8% cobalt) HSS-E for abrasion resistance in tough metals
• 135-degree split point and heavy-duty spiral flute for reduced feed pressure and faster chip ejection
• Mechanics length overall 3-9/16 in with 2 flutes and a cylindrical shank

Product Highlights

9/32 in diameter; M-42 (8% cobalt) HSS-E; 135-degree split point; overall length 3-9/16 in; left-hand mechanics length; 2 flutes; cylinder shank; gold oxide finish

Product Information

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: 30518ZR
• Country of Origin: Brazil

Technical Specifications

• Brand: IRWIN
• MPN: 30518ZR
• Diameter: 9/32 in (0.28125 in)
• Material: M-42 high speed steel (8% cobalt)
• Cutting Edge Material: HSS-E (Co-M42)
• Overall Length: 3-9/16 in (3.5625 in)
• Flute Length: 2 in
• Point Angle: 135 deg
• Point Shape: Split point
• Number of Flutes: 2
• Shank Type: Cylinder
• Finish: Gold oxide
• Hand: Left-hand
• Length Type: Mechanics length
• Spiral Angle: CCW (spiral direction / helix handedness)
• Structure: Solid
• Applicable Materials: Metal
• Applications: General metal drilling; use with screw extractors
• Resistance: Abrasion
• Type: HSS drill bit
• Packing Type: Bulk