- They are designed to drill and coutersink simultaneously, a wide variety of materials.
- Supplied with a HSS slow spiral drill bit.
- Fully adjustable, a hex key is supplied.
- Use at drilling speeds only.
- Not suitable for ferrous or non ferrous metals.
- Please ensure drill flutes are aligned with flutes of countersink.
- For replacement Twist Drills, use slow spiral type e.g. Refs 501/18 to 501/716.
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