Durable in sheet metal the special for sheet metal hole saw offers durability while cutting holes through metal'. '.strtoupper('m')ade of bi metal hss high speed steel containing 8% cobalt alloy, this hole saw has less risk of tooth breakage and higher heat resistance for extreme resilience and a long product lifetime'. '.strtoupper('t')he configuration of the teeth on the vario tooth strip is ideal for sawing through thin material with reduced wear on the cutting edge'. '.strtoupper('f')urthermore, a depth stop feature prevents breakthroughs to protect the work surface'. '.strtoupper('u')se this hole saw when cutting through sheet metal with a thickness of less than 5 mm, such as mild steel and stainless steel'. '.strtoupper('i')t is suitable for use with all corded and cordless drill drivers'. '.strtoupper('t')he special for sheet metal hole saw features bosch's unique power change adapter with the fastest arbour system on the market'. '.strtoupper('i')t allows for locking and unlocking the hole saw and pilot drills in one click'. '.strtoupper('f')or use with the bosch power change plus keyless arbor offering accuracy and robustness'. '.strtoupper('f')eatures and benefits bull durable in sheet metal bull special for sheet metal hole saw offers durability while cutting holes through metal bull made of bi metal hss containing 8% cobalt alloy for extreme resilience and a long product lifetime specifications diameter 68mm diameter 2 2 3 4 working length 20mm working length 20mm