Pro-Series 1/8-3/4 Inch JT4 Drill Chuck ~ Super precison and durable with a strong body. ~ The nut and jaws are AISI-52100 (bearing steel) and heat treated. ~ The taper is precision ground for improved precision. ~ Accuracy is 0.0032″. ~ Supplied with chuck key. ~ Made in Taiwan. Super precison and durable with a strong body. The nut and jaws are AISI-52100 (bearing steel) and heat treated. The taper is precision ground for improved precision. Accuracy is 0.0032″. Supplied with chuck key.
