GS Tooling HSK63A Shrink Fit Holders w/ Coolant Ports
- Unsurpassed Accuracy: Concentricity of ≤.0001” (3μm) with tool shrunk in holder.
- Coolant Ports: Each holder has 4 coolant ports in the nose to ensure coolant gets right to the tool.
- Max Gripping Torque: Tool is gripped 360° along the entire length of bore producing very high gripping torque, preventing chatter.
- Increased Production: Decrease down time - the total time elapsed to remove one cutting tool and insert another is less than 10 seconds.
- Balanced: GS follows the strictest balance standards. Our holders are pre-balanced G2.5 up to 30,000rpm
- Extended Holder Life: With double tempered tool steel construction, reduced centrifugal forces, minimized bore contamination, and minimized chatter, a GS Shrink Fit Toolholder should far outlast a standard end mill holder.
- Chip load distributed evenly along cutting edge of tool which results in longer tool life
- Short projections are possible because no mechanical clamping devices are used. This results in greater rigidity and resistance to bending.
- Since Shrink Fit toolholders have no moving parts they offer the greatest repeatability of any tool holding system on the market.

| Item No. | D1 | A | D2 | D3 | L |
| 546-338 | 1/8" | 3.15" | 0.59" | 0.787" | 0.35" |
| 546-340 | 3/16" | 3.15" | 0.59" | 0.787 | 0.47" |
| 546-342 | 1/4" | 3.15" | 0.826" | 1.06" | 1.42" |
| 546-344 | 1/4" | 6.30" | 0.83" | 1.06" | 1.42" |
| 546-346 | 5/16" | 3.15" | 0.826" | 1.06" | 1.42" |
| 546-350 | 3/8" | 3.35" | 0.94" | 1.26" | 1.65" |
| 546-352 | 3/8" | 6.30" | 0.94" | 1.26" | 1.65" |
| 546-354 | 1/2" | 3.54" | 1.06" | 1.34" | 1.65" |
| 546-356 | 1/2" | 6.30" | 1.06" | 1.34" | 1.65" |
| 546-358 | 5/8" | 3.74" | 1.06" | 1.34" | 1.97" |
| 546-360 | 5/8" | 6.30" | 1.06" | 1.34" | 1.97" |
| 546-362 | 3/4" | 3.94" | 1.30" | 1.65" | 2.05" |
| 546-364 | 3/4" | 6.30" | 1.30" | 1.65" | 2.05" |
| 546-366 | 1" | 4.53" | 1.73" | 2.09" | 2.28" |
| 546-368 | 1" | 6.30" | 1.73" | 2.09" | 2.28" |
| 546-370 | 1-1/4" | 4.72" | 1.73" | 2.09" | 2.28" |
| 546-372 | 1-1/4" | 6.30" | 1.73" | 2.09" | 2.28" |
For more info, visit www.p65warnings.ca.gov.
