Limit runout and slippage under heavy cutting forces from CNC machines. These chucks have an integrated arbor for a one-piece design that makes them more accurate and compact than chucks with a separate arbor. Made of hardened steel, they resist wear from repeated use. Their shank is precision ground to the industry standard AT3 tolerance for a tight fit in your spindle. They meet JIS standards for compatibility across machines with BT spindles. They have a threaded hole that accepts retention knobs, so they connect to your machine’s drawbar system.

Lock tool holders in place on CNC machines with a BT taper spindle. All meet industrial standards for tensile and shear strength. These knobs are also known as pull studs. They have a pilot, which ensures precise alignment between the tool holder and spindle, reducing vibration and runout. To ensure compatibility with your machine, compare the features on these knobs, such as the pilot design, to those on your current knob. If you want to upgrade a standard knob to one with a pilot, confirm that the pilot diameter is small enough to fit in your tool holder without touching the inner walls where the knob seats.

Use a torque wrench with a retention knob socket or a changeable-head torque wrench to tighten them.

Reduce stress on taps to produce clean, accurate threads. These holders work with BT taper CNC machines that don’t support rigid tapping. Also called tension and compression tap holders, they compress as the tap enters material and extend as it backs out, compensating for small spindle and feed rate mismatches. Not only does this protect the tap but also the threads you just cut. They’re often used when tapping through and blind holes with spiral-point and spiral-flute taps.

Their hardened steel shank resists wear. It’s also precision ground to the industry standard AT3 tolerance for a secure fit that minimizes runout in your machine spindle. They meet JIS standards for BT spindles to ensure compatibility. They have a threaded hole that accepts retention knobs, so they connect to your machine’s drawbar system.

Use these holders with tang-drive quick-change tap collets (also known as Bilz-style tap adapters) to swap taps in seconds and limit machine downtime. They are not compatible with ball-drive quick-change tap collets.

For the best performance, select a quick-change collet size that places your tap near the middle of the listed tap size range.

Hold quick-change tap collets on BT taper CNC machines capable of rigid tapping. These holders are rigid, so they move your tap in perfect sync with your machine's spindle speed and feed rate without any flex or compensation.

The hardened steel shank resists wear. It’s also precision ground to the industry standard AT3 tolerance for a secure fit that minimizes runout in your machine spindle. They meet JIS standards for BT spindles to ensure compatibility. They have a threaded hole that accepts retention knobs, so they connect to your machine’s drawbar system.

Use these holders with tang-drive quick-change tap collets (also known as Bilz-style tap adapters) to swap taps in seconds and limit machine downtime. They are not compatible with ball-drive quick-change tap collets or quick-change tap collets with torque control.

For the best performance, select a quick-change collet size that places your tap near the middle of the listed tap size range.

Lock tool holders in place on CNC machines with a through-spindle coolant (TSC) system. They fit machines with a BT taper spindle. All meet industrial standards for tensile and shear strength. Also known as pull studs. These knobs have a pilot, which ensures precise alignment between the tool holder and spindle, reducing vibration and runout. To ensure compatibility with your machine, compare the features on these knobs, such as the location of O-ring seals and the pilot design, to those on your current knob. To upgrade a standard knob to one with a pilot, confirm that the pilot diameter is small enough to fit in your tool holder without touching the inner walls where the knob seats.

Use a torque wrench with a retention knob socket or a changeable-head torque wrench to tighten them.