Description BT30/BT40 APU13 Drill Chuck | 1~13mm Diameter Capacity | 100mm Length. The BT30/BT40-APU series General Type APU Drill Chuck. APU Drill Chucks are a good economic choice for general drilling applications and are suitable for use with HSS Drills. They have a 15 micron run-out and require manual tightening with a c-spanner, or by hand. BT30 APU13 Drill Chuck. BT40 APU13 Drill Chuck ≤15μm Runout Tightening by hand and with c-spanner Unbalanced. Suitable for HSS Drills. This is a highly precise machined component made by engineers, for engineers. Good manufacturing practise should be followed in terms of cleanliness, ground surface treatments and safe storage. In order to maintain this components Ultra Precision, strict GMP should be adhered to.
