SNAP and MicroSNAP

Economic front and back chamfering in One Operation, with very easy blade changes.
Stock Standard Tools 2mm -25mm (.080" - .984")

• Production front and back deburring and chamfering.
• Easy to handle and operate
• No Presetting
• Quick and easy blade changes
• Longer tool life (carbide-TiN)                         


High Quality Consistent Chamfers:

The SNAP blades are ground with a patented geometry developed by Heule to produce quality chamfers and eliminate secondary burrs. Different chamfer sizes can be achieved by selecting a different blade. There is no need for adjustments or operator intervention.

How Does the SNAP Tool Work?

As the rotating tool is fed into the hole, the front cutting edge deburrs the top of the hole by cutting a 45° chamfer. As the tool feeds into the part, the blade is forced into the body, and slides in the blade window.

When the blade is in the hole, only the ground gliding surface touches the hole, protecting it from damage while the tool is fed through the part. There is no need to stop or reverse the spindle.

When the blade reaches the back of the part the coiled spring acts with the control bolt to push it back out into cutting position. The back edge is deburred and chamfered as the tool is withdrawn. When the blade is again in the hole, the tool can be rapid fed out and on to the next hold.



Precision chamfering of tough materials, front and back in One Operation
Stock Standard Tools 4mm - 36.2mm (.157" - 1.425")

• Precision chamfers on the front and back of the hole in a single operation
• Preset for exact chamfer dimension

• Large chamfers not affected by hard materials or large burrs
• Large chamfers necessary for tapped holes without damaging threads

• Consistent chamfers over the life of the inserts


 Consistent Chamfers:

One of the biggest advantages of the DEFA tool is the ability to set the chamfer size. The DEFA tool is designed to allow the user to set the blade force, which holds the blades to the desired size and allows the blades to cut consistent chamfers despite material or burr size. This provides precise front and back chamfers specific to the user's needs.

How Does the DEFA Tool Work?

The DEFA tool cuts a pre-adjusted chamfer diameter. The blade force keeps the DEFA blades out to the predetermined setting, thereby defining the chamfer diameter. The blades upper and lower cutting edge permit machining in both forward and reverse directions.

As the DEFA blades enter the material, the force occurring through the feed on to the chamfer definition surface causes the blades to retract radially along the axis of the chamfered surface. The cutting width is constantly reduced. The definition surface angle determines the chamfer angle.

Damage to the hole or thread surface is prevented by the sliding surface geometry of the DEFA blades.


Need Some Help? Find Your Local HEULE Representative 

Deburring: COFA | SNAP     Chamfering: SNAPDEFA     Countersinking:  SOLO | GH-Z/E | GH-K  

Spotfacing:  BSF | SOLO | GH-Z/E     Counterboring: BSF | SOLO | GH-Z/E     Drilling: VEX-S | VEX-P | COMBI

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