Contact Create Account / Log In Help / FAQ Tech Central Repairs Product release Our Brands Shop Sales All Parts by Brand ADEC ADEC | W&H ATHENA BEYES BIEN AIR BRASSELER CASTELLINI DABI ATLANTE DARBY DENTEX DENTSPLY SIRONA HENRY SCHEIN JELENKO KAVO KINETIC INSTRUMENTS LARES MICROMA MICROMITE MIDWEST MK DENT MMI MORITA MTI NEYTECH NSK PALISADES DENTAL PATTERSON SAFCO SCICAN SIEMENS SIRONA STAR W&H YOSHIDA Highspeed Turbine Cartridges Sub-assemblies Canisters SureGrip Autochucks, Spindles, & Collets Head Caps SureFix Kits Bearings Other Parts ValuPak Lowspeed KaVo Micromite Midwest MTI NSK Star All Lowspeed Bearings Bearing Interchange 1:5 Contra Angle All 1:5 Contra Angle Bearings Bearing Interchange Bien Air Henry Schein KaVo NSK Sirona Star W&H Air Scaler KaVo Micro-Mega Star Laboratory Bien Air Henry Schein Jelenko Neytech NSK Dental Bearings Perfection Bearings SureFix Kits Highspeed Lowspeed 1:5 Contra Angle Bearing Interchange Tools & Testing Electric Attachment Repair Tools & Equipment EZ Press & Accessories Test Equipment Cap Wrenches Head Expanders Bur Tools Other Tooling Instructions Dental Handpieces TTBio Brand Highspeed Lowspeed Log In / Register Help / Faq Tech Central Repairs Product releases Our Brands Shop sales » All Parts by Brand ADEC ADEC | W&H ATHENA BEYES BIEN AIR BRASSELER CASTELLINI DABI ATLANTE DARBY DENTEX DENTSPLY SIRONA HENRY SCHEIN JELENKO KAVO KINETIC INSTRUMENTS LARES MICROMA MICROMITE MIDWEST MK DENT MMI MORITA MTI NEYTECH NSK PALISADES DENTAL PATTERSON SAFCO SCICAN SIEMENS SIRONA STAR W&H YOSHIDA Highspeed Turbine Cartridges Sub-assemblies Canisters SureGrip Autochucks, Spindles, & Collets Head Caps SureFix Kits Bearings Other Parts ValuPak Lowspeed KaVo Micromite Midwest MTI NSK Star All Lowspeed Bearings Bearing Interchange 1:5 Contra Angle All 1:5 Contra Angle Bearings Bearing Interchange Bien Air Henry Schein KaVo NSK Sirona Star W&H Air Scaler KaVo Micro-Mega Star Laboratory Bien Air Henry Schein Jelenko Neytech NSK Dental Bearings Perfection Bearings SureFix Kits Highspeed Lowspeed 1:5 Contra Angle Bearing Interchange Tools & Testing Electric Attachment Repair Tools & Equipment EZ Press & Accessories Test Equipment Cap Wrenches Head Expanders Bur Tools Other Tooling Instructions Dental Handpieces TTBio Brand Highspeed Lowspeed 0.440 / 0.044 Autochuck Straight Part No. HNK551 Dealer Price: (Members Only) Qty: DESCRIPTION SPECIFICATIONS 0.440 / 0.044 Autochuck BacksteppedSureGrip™ Push Button Autochuck Spindle Length: 0.440" / 11.176 mm Actuator height: 0.044" / 1.118 mm Total length: 0.484" / 12.294 mm Coating: Diamond-like carbon (DLC) Design: Straight Chuck design: Wedge-type Features Heat-treated stainless steelPrecision ground to roundness tolerances of 0.000040" Exceeds ISO standard by 50% for true concentricity to reduce noise and vibrationInsertion depth and actuation force matches OEMSafe - provides reliable performance with undersized bursIndividually and clearly serialized for traceability Related product... NSK Ti-Max Z900L Push Button Impeller NSK Ti-Max Z900L Push Button Bearing Kit / Angular Contact / CERAMIC NSK Ti-Max Z900L Push Button Sub-assembly NSK Ti-Max Z800L / Z900L Cap Wrench Dealer Price: (Members Only) Add Dealer Price: (Members Only) Add Dealer Price: (Members Only) Add Dealer Price: (Members Only) Add NSK Ti-Max Z900L Push Button Extend Turbine Cartridge Dealer Price: (Members Only) Add