11mm HSS Mini Hole Saw Insize Digital Snap Gauge 0 50mm 0 2" Range Series 1163 50A HSS Co8 (8% Cobalt) – Offers 7240 300 HSS Co8 (8% Cobalt) – Offers outstanding red hardness and resistance to thermal wear ratchet stop Precision Cutting for Versatile Materials efficient cutting with minimal vibration✔ Shank Type: Threaded shank with a special tool holder for easy and secure installation✔ Cutting Depth Adjustment: Clam tail bolts with an internal hexagonal wrench for precise depth control and spring force regulation✔ Pilot Pin: Sold separately to ensure accurate hole positioning and core material removal✔ Multi Material Compatibility: Suitable for use on steel