System BTA Overview Solid drilling tools with brazed carbide inserts & guide pads with indexable inserts and guide pads Counterboring tools with indexable inserts and guide pads Trepanning with indexable inserts and guide pads Accessories drill tubes connecting chucks vibration damper pressure heads drill bushings spare parts adaptors tool presetter	Type 11 - solid drill head, with indexable inserts and guide pads, diameter determined by insert stop plate d iameter range: 18.00 - 36.99 mm Type 61 - Solid drill head, with indexable inserts and guide pads, diameter determined by insert stop plate diameter range: 18.00 - 36.99 mm Type 21 - solid drill head, with indexable inserts and guide pads diameter range: 18.00 - 36.99 mm Type 41 - solid drill head, with indexable inserts and guide pads diameter range: 18.00 - 36.20 mm Type 70A - solid drill head, with indexable inserts and guide pads diameter range: 25 - 65 mm Type 43 B/A/F - solid drill head, with indexable inserts and guide pads diameter range: 150 - 350 mm > more