Micro Boring Holders for Micro Parts Manufacturing by UTILIS

Using MICROBORE boring bars with the MICROBORE holder makes orientation & location of micro boring bars simple. Every boring bar incorporates an angled back end that locates within .0002" against a positive location pin contained within every precision MICROBORE holder. A fine pitch thread knurled nut applies sufficient force against the snap ring on the boring bar simply by tightening by hand. NO WRENCHES REQUIRED.


Reliable Positioning

  • A positive stop pin ensures the micro-boring bar is always oriented and located in the same location
  • Quickly Setup, Locate & Orient Micro Boring Bars

Coolant-Thru

  • Every micro-bore bar & holder has coolant-thru capability

Straight Shank - SDA

Imperial - 4mm Shank

Part No d1 g Lg L1 L2 L3 L4
SDA 4 060 12.7 1/2" R 1/8" 60 27 5 - -
SDA 4 060 19.05 3/4" R 1/8" 60 27 5 - -
SDA 4 060 25.4 1.0" R 1/8" 60 27 5 - -
SDA 4 120 12.7 1/2" R 1/8" 120 27 5 27 5
SDA 4 120 19.05 3/4" R 1/8" 120 27 5 27 5
SDA 4 120 25.4 1.00" R 1/8" 120 27 5 27 5

Imperial - 6mm Shank

Part No d1 g Lg L1 L2 L3 L4
SDA 6 065 12.7 1/2" R 1/8" 65 27 5 - -
SDA 6 065 19.05 3/4" R 1/8" 65 27 5 - -
SDA 6 065 25.4 1.0" R 1/8" 65 27 5 - -
SDA 6 120 12.7 1/2" R 1/8" 120 27 5 27 5
SDA 6 120 19.05 3/4" R 1/8" 120 27 5 27 5
SDA 6 120 25.4 1.00" R 1/8" 120 27 5 27 5

Metric - 4mm Shank

Part No d1 g Lg L1 L2 L3 L4
SDA 4 060 07 7 M5 60 - - - -
SDA 4 060 08 8 M5 60 27 5 - -
SDA 4 060 10 10 M5 60 27 5 - -
SDA 4 060 12 12 R 1/8" 60 27 5 - -
SDA 4 060 14 14 R 1/8" 60 27 5 - -
SDA 4 060 16 16 R 1/8" 60 27 5 - -
SDA 4 060 18 18 R 1/8" 60 27 5 - -
SDA 4 060 20 20 R 1/8" 60 27 5 - -
SDA 4 060 22 22 R 1/8" 60 27 5 - -
SDA 4 060 25 25 R 1/8" 60 27 5 - -
SDA 4 060 28 28 R 1/8" 60 27 5 - -
SDA 4 100 08 8 R 1/8" 100 27 5 - -
SDA 4 100 10 10 R 1/8" 120 27 5 - -
SDA 4 120 12 12 R 1/8" 120 27 5 27 5
SDA 4 120 14 14 R 1/8" 120 27 5 27 5
SDA 4 120 16 16 R 1/8" 120 27 5 27 5

Metric - 4mm Shank

Part No d1 g Lg L1 L2 L3 L4
SDA 6 065 12 12 R 1/8" 65 27 5 - -
SDA 6 065 14 14 R 1/8" 65 27 5 - -
SDA 6 065 16 16 R 1/8" 65 27 5 - -
SDA 6 065 18 18 R 1/8" 65 27 5 - -
SDA 6 065 20 20 R 1/8" 65 27 5 - -
SDA 6 065 22 22 R 1/8" 65 27 5 - -
SDA 6 065 25 25 R 1/8" 65 27 5 - -
SDA 6 065 28 28 R 1/8" 65 27 5 - -
SDA 6 100 12 12 R 1/8" 100 27 5 - -
SDA 6 120 14 14 R 1/8" 120 27 5 27 5
SDA 6 120 16 16 R 1/8" 120 27 5 27 5
SDA 6 120 18 18 R 1/8" 120 27 5 27 5
SDA 6 120 20 20 R 1/8" 120 27 5 27 5
SDA 6 120 22 22 R 1/8" 120 27 5 27 5
SDA 6 120 25 25 R 1/8" 120 27 5 27 5
SDA 6 120 28 28 R 1/8" 120 27 5 27 5

Imperial - 8mm Shank

Part No d1 g Lg L1 L2 L3 L4
SDA 8 070 19.05 3/4" R 1/8" 70 27 5 - -
SDA 8 070 25.4 1.00" R 1/8" 70 27 5 - -
SDA 8 120 19.05 3/4" R 1/8" 120 27 5 27 5
SDA 8 120 25.4 1.00" R 1/8" 120 27 5 27 5

Imperial - 8mm Shank

Part No d1 g Lg L1 L2 L3 L4
SDA 8 070 14 14 R 1/8" 70 27 5 - -
SDA 8 070 16 16 R 1/8" 70 27 5 - -
SDA 8 070 20 20 R 1/8" 70 27 5 - -
SDA 8 070 22 22 R 1/8" 70 27 5 - -
SDA 8 070 25 25 R 1/8" 70 27 5 - -
SDA 8 070 28 28 R 1/8" 70 27 5 - -
SDA 8 100 14 14 R 1/8" 100 27 5 - -
SDA 8 120 16 16 R 1/8" 120 27 5 27 5
SDA 8 120 18 18 R 1/8" 120 27 5 27 5
SDA 8 120 20 20 R 1/8" 120 27 5 27 5
SDA 8 120 22 22 R 1/8" 120 27 5 27 5
SDA 8 120 25 25 R 1/8" 120 27 5 27 5
SDA 8 120 28 28 R 1/8" 120 27 5 27 5

Dogleg - AKR

AKR Dogleg Micro Boring Bar Holder

Part No a b Dmax h d Lg L1 L2 L3
AKR M 0808x100 D4-3540 8 8 26 30 4 104 20 55 4
AKR M 0808x100 D4-48 8 8 26 30 4 104 30 65 4
AKR M 1010x100 D4-3540 10 10 26 31 4 105 20 55 5
AKR M 1010x100 D4-48 10 10 26 31 4 105 30 65 5
AKR M 1212x100 D4-3540 12 12 26 32 4 106 20 55 6
AKR M 1212x100 D4-48 12 12 26 32 4 106 30 65 6
AKR M 1/2"x100 D4-3540 .500" .500" 26 32.5 4 106.5 20 55 6.5
AKR M 1/2"x100 D4-48 .500" .500" 26 32.5 4 106.5 30 65 6.5
AKR M 1616x100 D4-3540 16 16 26 34 4 133 20 55 8
AKR M 1616x100 D4-48 16 16 26 34 4 133 30 65 8

GenSwiss Catalog

Utilis 2016 Catalog