CrazyDrill Pilot
Centering and pilot hole drilling
in one step

Shorter machining time

Short drill and chamfer tool for centering, pilot drilling and chamfering in one passage but not a DIN centering hole since the pilot hole has no additional protective chamfer
High machining speed

Optimal coating protects tungsten carbide drill from wear
Sturdy design with reinforced shaft
Longer tool life for the follow-up drill since it is guided in the pilot hole with the same tip angle and there is no risk of cutting edge breakage

Degressive flute prevents catching at the transition to the chamfer and allows constant cutting conditions
Cylindrical guidance of the follow-up drilling prevents drifting
Simultaneous chamfering with 90° angle replaces countersink drill bit
No jamming of the follow-up drill due to diameter tolerances perfectly matched to all Mikron Tool deep-hole twist drill types such as CrazyDrill Cool and CrazyDrill Cool XL

High degree of position accuracy and straightness due to sturdy design
Highest degree of precision and straightness in deep holes longer than 6 x d since the pilot drill creates a guide bore, thus guiding the follow-up drill ideally.
No measurable transition from pilot hole size to follow-up deep hole size

Center drill/pilot drilling up to 2 x d and chamfer of 90° in one work cycle
Short machining time
Long tool life and reliability of the follow-up drill through adapted tolerances and tip angles
CrazyDrill Pilot can be reground. With this tool costs are being reduced

Pilot drill CrazyDrill Pilot with adapted diameter tolerance for subsequent twist drill types such as CrazyDrill Cool and CrazyDrill Cool XL (140° tip angle)
Diameter range: drill sizes 0.4 mm – 6.35 mm (.016” to .250”, fractional inches available)
Diameter increments: up to diameters of 4 mm (.016”) every 0.05 mm (.002”), from diameter of 4 mm (.016”) and up every 0.1 mm (.004”)
Drilling depth: up to 2 x d

Center drill, pilot hole drilling and chamfering possible in one processing step
High degree of precision for the follow-up drilling, no deviation in deep holes
Longer tool life for follow-up drills because of adapted tolerance and tip angle
Pilot drill with 90° chamfer for simultaneous chamfering
Reinforced shaft diameter
Degressive flute for good cutting and higher degree of reliability when chamfering
Diameter measurement/increments matched to CrazyDrill twist drill types
Can be reground and re-coated; drilling performance of a re-sharpened CrazyDrill Pilot is equal to a new drill in terms of performance, precision and hole quality
Mikron Tool produces all tools with highest repeat precision. Hence the user will benefit from long term stable production conditions (stable process and machining precision)