The Milwaukee® 2719-21 M18™ Fuel™ Hackzall® is the fastest cutting and most powerful one-handed reciprocating saw. Utilizing a Powerstate™ brushless motor and a excellent in class 7/8 in stroke length, the M18™ Fuel™ Hackzall® cuts up to 50 % faster than competitors. The compact, one-handed design provides great control and the ability to make cuts in tight spaces. The dual gear counter balance mechanism provides up to 4X lower vibration than traditional reciprocating saws, resulting in faster cut-starts in metal and reduced user fatigue. REDLINK™ Plus™ intelligence ensures optimized performance and protects your investment from overload, overheating and over discharge. The M18™ REDLITHIUM™ XC5.0 battery pack provides more work per charge and more work over the life of the pack than competitive batteries. A rubber seal and weep holes provide great protection against water and debris.

• Cuts up to 50% faster than competitive one handed reciprocating saws
• Compact and lightweight design allows for easier cutting in tight spaces or overhead applications
• REDLINK™ intelligence provides overload protection to defend against abusive situations
• One-size fits all
• Pivot light rotates to illuminate your project
• Made of steel, cast aluminum and carbide
• Up to 77% more power when paired with FLEXVOLT® batteries
• POWER TIP™ with dynamic cutting edges provides ultimate material disruption for increased productivity
• REDLITHIUM™ battery - great pack construction, electronics and performance deliver more work per charge and more work over pack life than any battery on the market
• 7/8 in stroke length removes more material with each stroke resulting in the faster cuts

• https://assets.unilogcorp.com/187/ITEM/DOC/Milwaukee_100305853_Owners_User_Manual.pdf Owners/User Manual