Borman Step Drill Set - 3 Piece 100900 6ft-Robust and versatile runways for

6ft-Robust and versatile runways for use in all dynamics investigations with trolleys or model cars etc

Joint Size 19/26

It incorporates a newly designed 12 inch custom woofer cone in order to produce a richer sound quality

and other wet areas where spills and moisture are common

Borman Step Drill Set - 3 Piece 100900 6ft-Robust and versatile runways forProduces parallel holes in sheet materials up to 3 4mm thick. Range of sizes on one hole economise on drills and changeover time. Precision ground axial and radial relief ensure that cutting edge is the highest point. Set comprises 3 step drills of diameters: 4 12mm, 6 20mm, 4 32mm. Supplied in a strong flip up metal case. Size: 4 32mm. Pack Size: 3 piece set.