![]() ![]() Like any other tool, constantly pushing a hammer to its extremes will eventually lead to failure. Though occasional rotary drilling at full capacity is possible, you're always better off opting for the next larger hammer for continuous larger hole drilling. The exact size core and thru-hole bits are dependent on the hammer size. Bosch SDS-plus hammers can handle carbide-tipped core bits from 2-1/2" up to 3-1/2", and SDS-max hammers can handle carbide-tipped core bits from three inches up to 6" and thru-hole bits up to 3-1/8". ![]() In addition, each rotary hammer incorporates the flexibility to drill larger holes as well. Larger combination hammers typically offer two modes: hammer drilling and chiseling only.Įven With the Best Rotary Hammer - Hole Size Matters Bosch rotary hammers (SDS-plus) offer three modes of operation: hammer drilling, drilling only and chiseling only. It’s also important to select a tool with the right functions. ![]() Like any other tool or machinery, constantly pushing a rotary hammer to its extremes will eventually lead to the tool’s failure. For each system those ranges are:Įven though intermittent rotary drilling at full bore capacity is possible, it’s always better to opt for the next larger rotary hammer if any drilling series requires larger holes. Just as doctors have specialties, each bit-holding system operates most efficiently and accurately within a defined range. Spline is a bit holding system that has been used for many years, but is gradually being replaced by the superior Bosch invented () SDS-max® system. Most hammers for rotary drilling tasks utilize one of three systems: SDS-plus®, SDS-max® or spline. The bit/tool interface system consists of the tool’s internal components that hold the bit in place and transfer energy from the electric motor and gearing mechanism to the bit. Though operating the hammer in rotary drilling mode within the ranges listed below will offer the best results, each hammer also includes the flexibility to drill larger holes as well. The Best Rotary Hammer Will Deliver the Most Versatilityīy selecting the best rotary hammer designed to drill fast, precise holes, efficient performance will almost be guaranteed. ![]()
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