Makita HR3001CJ SDS Plus Rotary Hammer in Makpac Case (240V) The Makita HR3001C is a mains powered 30mm (1-3/16") rotary hammer with drastically increased drilling efficiency thanks to a redesigned hammering mechanism. Features Double Insulation Variable speed Forward / reverse rotation Torque limiter Constant speed control 3-mode operation for "Rotation Only", "Hammering with Rotation" or "Hammering Only" Drilling efficiency drastically increased by redesigned hammering mechanism "No hammering when idling" function helps increase tool life Anti-vibration main handle Adapted for SDS-PLUS bits Depth Gauge Comes With: Makpac Connector Case (Type 4) Depth stop Side handle Specification: Impact energy: 3.9J Max in concrete (TCT bit): 30mm Max in concrete (TCT core): 80mm Max in concrete (Diamond core): 80mm Max in wood: 32mm Max in steel: 13mm Impacts per minute: 0 - 4500ipm Input Wattage: 1050w Vibration K factor: 1.5m/sec Net weight: 4.1- 4.5kg No Load Speed: 0 - 840rpm Vibration (Chise