Designed to use Jetbroach cutters or twist drill. Loosening the pillar clamp allows the complete frame to be lifted up to a maximum of 60 mm for specific drilling. The use of Jet-broach cutters require the frame to be at the lowest position, while twist bit drilling required the appropriate amount of elevation to be adjusted for safe operation. The pillar clamp is required to be tightened before drilling safely. Feed handles can be positioned on the right or left hand side for ease of drilling and mounting in confined spaces.