Synchro Tapping
Attachment with unique
Double Flexure
Unlike other “synchronous” tap drivers that use soft plastic components or
belleville washers similar as above, to cushion the taps’ entry into the hole,
Synchro utilizes a (computer generated, precisely machined, special steel alloy)
Double Flexure between the mount and the chuck.
It compensates both axially for the unavoidable discrepancies between the
machine’s programmed RPM, feed and traverse and the exact thread pitch and precise
hole location.
The Synchro is dependable and predictable. You can expect long life performance under all
working conditions. What’s more, you’ll make significant savings when it comes to tap costs.
Synchro Proven Results
Force (N)
• Tap life increased by 100% or more
• Thread quality improved
• Increased production due to less tap breakage
• Less down time
• Reduced costs. The most economical
rigid tapping
Synchro exerts lower thrust and torque forces than any other
tap holder on the market. In any given material the lower the
thrust and torque forces on the tap, the longer the tap life.
600
Steel Collet Holder
Competitor X
Competitor Y
Sutton Synchro SFT50
500
400
300
200
SFT100
SFT75
187
160
133
SFT50
106
80
SFT10
54
27
.125
.25
.375
.50
.625
Deflection (mm)
Consistent and
predictable tap
starting force
Deflection Rates
Only Synchro’s computer
generated flexure technology
produces a progressively
higher tap starting force
for each 0.025mm of
deflection. It’s predictable
and consistent throughout
the life of the tool.
Test One (Thrust): 10 holes, M6 R45Al, 2 flute tap, 3x Dia. deep in AL7075 at 1000 RPM
Holder Type Average
Thrust
(N)
Steel Collet Holder (Rigid)
Competitor X
Competitor Y
Synchro 1008
681
320
-12
Average Down Cut Average Reverse
Thrust (N)
Thrust (N)
Entering Hole
Exiting Hole
1379
879
425
-29
930
445
266
-31
Test Two (Torque): 10 holes, M6 R45Al, 2 flute tap, 3x Dia. deep in AL7075 at 2000 RPM
200
100
Holder Type
0
Sutton Synchro SFT50
-100
Depth
Graph illustrates the final hole tapped by each tap driver.
Steel Collet Holder (Rigid)
Competitor X
Competitor Y
Synchro
Average
Torque
(Ncm) Average Down
Cut Torque (Ncm)
Entering