VEX | Drilling and chamfering in one operation

Range

The standard range includes tools for bore diameters from 5.0 mm to 17.0 mm. The corresponding drill inserts (VEX-S) or drill heads (VEX-P) are available in 0.1-mm increments. The blades for chamfering correspond to SNAP technology and are available in forward and backward cutting or backward cutting only versions. The chamfer size and angle are geometrically defined on the blade and can only be changed by using a blade with a modified geometry.

VEX-S
Bore diameter range mm	Max. bore depth		Internal coolant supply		Max. chamfering capacity	Series
	1xd	2xd	with	without
5.0–5.99	6.0	12.0		x	1.0 mm	B
6.0–6.99	7.0	14.0	x	x	1.0 mm	C
7.0–8.49	8.5	17.0	x	x	1.0 mm	D
8.5–10.49	10.5	21.0	x	x	1.0 mm	E
10.5–11.49	11.5	23.0	x	x	1.0 mm	F

VEX-P
Bore diameter range mm	Max. bore depth	Internal coolant supply		Max. chamfering capacity	Series
	1.5xd	with	without
11.0–13.99	21.0	x		1.0 mm	C
14.0–17.00	25.5	x		1.0 mm	D

Should no standard tool solution be available for your application, HEULE can make a detailed application analysis. The result will be an application-specific solution.

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Construction

The VEX combination tool features an unscrewable twist drill insert (VEX-S) or changeable drill head (VEX-P) and a SNAP technology blade integrated in the tool body for forward and backward chamfering. Both the drill insert tip and the blade are made of coated carbide and are extremely simple to change. The chamfering blade is accurately positioned by a spring-loaded control bolt in the tool body.

VEX-S

VEX-P

Tool Concept

Tool body
Control bolt
Pressure spring
Distance pin
Set screw
SNAP blade
Drill insert

Tool Concept

Tool body
Control bolt
Pressure spring
Distance pin
Set screw
SNAP blade
Drill head
Clamping screw

Process steps description

In a single operation with the VEX, the bore is produced with chamfers on both of its edges. This process is completed without rotating the workpiece or changing tools.

The high-performance twist drill insert (VEX-S) or the drill plate (VEX-P) takes care of the drilling. After drilling, the integrated SNAP chamfering system is used to chamfer the front and back edges. The desired chamfer is created by the blade in working feed. Upon reaching the defined chamfering size, the blade retracts radially into the tool body. When exiting the bore, the spring-loaded control bolt returns the blade to its neutral position so that the chamfer can be machined on the back edge of the bore.

Downloads

Visit our downloads section for detailed information, videos and operating instructions.

VEX | Programming Information

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What if I was able to produce fully machined bores in one single pass?

You can find out in our 20-minute Online Seminar "DRILLING + CHAMFERING in one single pass".

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