Handle model: BT40-TER25-4 " Blessing scope: M2-M22 Including universal chuck models: ER25-3mm 1pcs,ER25-4mm 1pcs, ER25-5mm 1pcs,ER25-7mm 1pcs,ER25-8mm 1pcs,ER25-9mm 1pcs ,ER25-12mm 1pcs,ER25-13mm 1pcs,ER25-14mm 1pcs,ER25-16mm 1pcs Tapping range: M2-M22