Accessories › 3-Jaw 4th Axis Chuck Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 3-Jaw 4th Axis Chuck $139.00 Add this 3 jaw chuck to your 4th axis as an upgrade to replace the included spur drive on the 4th axis unit. Purchase Added! Add this 3 jaw chuck to your 4th axis as an upgrade to replace the included spur drive on the 4th axis unit. Jaws tighten at the same time and they're reversible. Self-centering.Specifications:Size: 3/4"TPI: 16 Related Products Dust Shoe (DWC2440) from $39.99 Laser Guide $69.99 Digital Probe Tip 13/16 L .067 Tip Dia. $10.00 Ultra-HD High-Performance DWC 6-Watt Laser Engraver $999.00 Joint Maker Jig $175.00