Halfmoon Bits

Atlas Copco halfmoon bits use a D-shaped drive profile that provides a positive mechanical lock between the bit and its holder, preventing the bit pull-out and spin-out that can occur with round or hex shanks under high-torque reversing loads. Particularly suited to demanding assembly cycles where the tool frequently reverses direction, halfmoon bits deliver significantly more reliable bit retention and a longer effective service life than conventional alternatives in equivalent applications.

• D-shaped profile creates a positive mechanical lock against pull-out
• Prevents bit spin-out under high-torque reversing loads
• Suited to demanding assembly cycles with frequent direction reversal
• Longer effective service life than conventional round or hex shank bits