Irwin 10502646 HSS TCT Tip Drill Bit

The Irwin HSS TCT drill bit combines a C2 carbide tip with a Chrome Vanadium Steel body, designed for precise drilling in hardened steel, cast iron, bronze alloys, and manganese alloyed steel using stationary machines. The four-faceted ground tip supports low drilling pressure and accurate centering, while the body is hardened to 56 Rockwell C for durability. This drill bit accepts a coolant during use to extend its life, with a recommended coolant concentration. Key dimensions include a 5.5 mm diameter, total length of 93 mm, and a working length of 57 mm, making it suitable for demanding materials up to 50 Rockwell C hardness.

Features

• C2 carbide tip for hardness up to 50 HRC
• Four-faceted ground tip for low drilling pressure and centering
• Chrome Vanadium Steel body hardened to 56 HRC
• Designed for stationary drills
• Diameter 5.5 mm; total length 93 mm; working length 57 mm

Technical specifications

• Diameter: 5.5 mm
• Total length: 93 mm
• Working length: 57 mm
• Body material: Chrome Vanadium Steel (56 HRC)
• Tip material: C2 Carbide
• Maximum drilling hardness: 50 HRC

Always use a coolant when drilling with TCT twist drill bits; a 3-6% emulsion extends the bit’s lifespan.