NC Spot Drill for Accurate Hole Positioning in CNC Machining

Nine9 NC Spot Drills are precision cutting tools designed to improve hole positioning accuracy in CNC machining. By creating a stable and accurate starting point, they help prevent drill wandering and reduce tool wear in subsequent drilling operations.

Available with 60°, 90°, 120°,142° and 145° point angles, Nine9 NC spot drills are optimized to work with common drill geometries. Using a spot drill angle approximately 2° larger than the following drill bit allows the drill center to contact the workpiece first, ensuring stable entry and consistent results.

Suitable for use on CNC lathes and milling machines, Nine9 NC Spot Drills enable higher feed rates, extended drill tool life, and improved production efficiency, while ensuring geometrically uniform holes and stable product quality in high-precision applications.

Nowadays, to cope with market demands, we supply various point angles.

• ACE Spot Drill: 60°, 90°, 120° and 142°
   It has high rigidity, high efficiency and ultra-long tool life.
ACE Spot Drill possesses precise positioning of the insert derived from dual clamping screwed design ensures the vibration free while cutting, plus symmetric 2-flute edge design reducing the lateral force, it enhances ACE Spot drill rigidity enabling to run high feed rate. Furthermore, the double point angles make the insert tip stronger to prolong service life, which results in lower production costs. Optimal internal coolant design brings better balancing to run at high speed.

• Micro Spot Drill: 90°, 120° and 142°
   It geometries are short to optimize rigidity and accuracy with a point angle to guide micro drill towards the hole's center line. It produces a consistent surface for micro drill successfully to enter the workpiece especially for round, angled or curved surfaces.

• NC Spot Drill: 60°, 82°, 90°, 100°, 120°, 142° and 145°.
    Nine9 Spot Drill is more than just a spotting drill, but a multiple functional tool. Inserts of NC Spot Drill are interchangeable and covers various angles from 60° to 145° for different purpose applications, such as spotting, chamfering, grooving, engraving, and corner rounding, etc. Various insert grading on the same holder can machine carbon steel, low alloy steel, high alloy steel, stainless steel, cast iron, non-ferrous metal, Ti-alloy, heat resistant alloy and hardened steel< HRC56. It is economical and save your tooling cost.


>> More information of spot drill apply for ER clamping structure, ex: BT30, driven tools, tapping and turning center.