Alpha Colbalt Series Double End Panel Drill Pack of 10 - 3.3mm

The Alpha Cobalt Series Double Ended Panel Drill Bit is designed for high-performance rivet hole drilling and precision sheet metal work. Supplied in a pack of 10, this professional-grade bit is trusted in automotive, fabrication, and general metalworking environments where accuracy and tool life are critical.

Constructed from fully ground M35 cobalt steel and coated in Titanium Nitride (TiN), this bit offers superior heat resistance, reduced friction, and long-lasting edge retention. The 135° split point ensures fast, accurate starts without the need for pre-punching, and the double-ended design means more work per bit before replacement.

FEATURES:

• M35 cobalt steel construction 5% cobalt blend for high hardness and heat resistance
• TiN-coated finish Reduces wear and friction for extended life
• Double ended Twice the usability – ideal for repetitive drilling tasks
• 135° split point Self-centres for fast starts, no pilot hole needed
• Suitable for steel, stainless, aluminium, timber and plastic

SPECIFICATIONS:

• Size: 3.3mm - Gauge: No. 30 (approx. 3.17mm / 1/8")
• Overall Length (OAL): 51mm
• Flute Length (FL): 13mm
• Type: Double-ended panel drill
• Material: M35 Cobalt High Speed Steel
• Coating: Titanium Nitride (TiN)
• Point Angle: 135° split point
• Shank: Round
• Pack Size: 10 drill bits
• Manufacturers Code: 9D30CO

BEST APPLICATIONS:

• Automotive and panel work
• Rivet hole drilling in stainless steel and aluminium
• Sheet metal fabrication and general-purpose drilling

DRILLING BEST PRACTICE:

• Always clamp the workpiece securely
• Use slower speeds and heavier feed for stainless steel
• Use a suitable cutting fluid for metal drilling. We recommend SW140386 CRC CDT Cutting Liquid or an equivalent
• Flip ends to maximise drill bit life when one side wears

Find the Alpha Metal Drilling Data Sheets HERE

Not what you are looking for, or need specialty tools? Please give us a call on 0800 080 4657 or email us on [email protected]. We are here to help.