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STS Regrindable Drill Head TU
 
Designed with two pilots and ID threaded. The TU is the most commonly used of the STS heads. It may be reground several times before discarding. Regrinding instructions are available upon request. Manufactured with standard chip-breaker unless otherwise specified. Unitac boring bars are available. Unitac's Retipped Brazed Heads offer you new tool performance for a fraction of the cost!
 
 Schematics and product specifications appear below. To request a catalog please complete our Catalog Request Form.
 
STS Regrindable Drill Head TU Schematic
 
NOTE:
Cutting edge honing by customer is strongly recommended as heads are supplied un-honed due to the wide variation in specification requirements.
 
Part # Diameter (mm) L (mm) a (mm) E (mm) F (mm) S (mm) Unitac Tube #
TU 150 14.51-15.00 50 23 9.9 11.5 6 UB12-1
TU 155 15.01-15.50 50 23 10.2 11.8 6 UB12-2
TU 160 15.51-16.00 50 23 10.8 12.4 6 UB13-1
TU 165 16.01-16.50 50 23 11.1 12.7 6 UB13-2
TU 172 16.50-17.25 50 23 11.8 13.4 6 UB14-1
TU 180 17.26-18.00 50 23 12.1 13.7 6 UB14-2
TU 190 18.01-19.00 50 23 12.8 14.4 6 UB15
TU 199 19.01-19.99 50 23 13.8 15.4 6 UB16-5
TU 219 20.00-21.99 59 25 14.5 16.5 10 UB18
TU 249 22.00-24.99 59 25 16 19 10 UB20
TU 269 25.00-26.99 66 25 17 20 10 UB22
TU 299 27.00-29.99 66 25 19 22 10 UB24
TU 319 30.00-31.99 71 25 21 24 10 UB26
TU 339 32.00-33.99 81 25 23 26 10 UB28
TU 369 34.00-36.99 81 40 24 27 20 UB30
TU 399 37.00-39.99 81 40 27 30 20 UB33
TU 439 40.00-43.99 81.5 40 30 33 20 UB36
TU 469 44.00-46.99 91.5 40 32 37 20 UB39
TU 519 47.00-51.99 91.5 40 37 41 20 UB43
TU 569 52.00-56.99 91.5 40 40 44 20 UB47
TU 609 57.00-60.99 91.5 40 45 49 20 UB51
TU 650 61.00-65.00 91.5 40 49 53 20 UB56
 
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