G24-452 G24452 Self-Centring Drill Guide for 1.1mm Drill 10mm Spread G24-453 G24453 Self-Centring Drill Guide for 1.5mm Drill 10mm Spread G24-454 G24454 Self-Centring Drill Guide for 2mm Drill 10mm Spread G24-457 G24457 Self-Centring Drill Guide for 2.5mm Drill 10mm Spread G24-456 G24456 Self-Centring Drill Guide for 3.2mm Drill 10mm Spread