Drill Bit Extension - 3 PCS Quick Release Magnetic Drill Bit Holder+105Degree Right Angle Drill Attachment Adapter Angled Screwdriver for Tight Space PRODUCT SPECIFICATION:MATERIAL: Cr-VHEX SHANK: 1/4 inchLength: 2(60mm), 4(100mm), 6(150mm) PRODUCT FEATURES:? [PREMIUM MATERIAL]-This drill bit extension set is made of industrial grade heavy-duty chrome-vanadium steel, durable, withstanding high pressure;? [STRONG MAGNETISIM]- Locking mechanism and strong built-in magnetism make the drill bit holder easy to pop up batch head automatically, fast and quick release ensured.? [DIMENSION]- [DIMENSION]-Each piece in this magnetic drill bit holder/adapter set has 1/4 driver adapter and 1/4 inch hex shank; Package includes drill bit holders of 3 Length - 2(60mm), 4(100mm), 6(150mm) to satisfy your various needs. Maximum torque of the right-angle drill adapter is 15N; Only for right angle head;? [WIDELY-USED]-In installation of pneumatic screwdriver, electric screwdriver, pneumatic drill, manual screwdriver and other installation for the hexagonal tool . A must-have package for conversion. Great for DIY work, household maintenance, and most general repairs, not for industrial work. A great tool addition to any tool box set. ? [FINE WORKMANSHIP]- Excellent surface coating provides extra protection from damage against elements and substances such as oil and fluids that may come in contact with the extension bars during usage.