Bosch Hammer Drills | McMaster-Carr

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For Maximum Rotary Hammer Drill Bit Size for Concrete

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7 Products

Bosch Electric Rotary Hammers


Style A	Style B

Style C	Style D

Style E

Use the rotary-only mode for general purpose drilling and driving fasteners (requires a chuck adapter or a magnetic bit holder). In rotary-percussion mode, the tool provides both a rotary drilling and hammering action. In the percussion-only mode, the tool provides only the hammering action. Use this mode when working with chisels and other masonry tools (see Chisels for Rotary Hammers). All have a variable speed motor—the further you depress the trigger, the faster the drill rotates.

For Spline Bit Shanks—Designed to drill larger holes than a SDS-Plus hammer, these models use spline-shank drill bits (see Spline-Shank Masonry Drill Bits and Spline-Shank Masonry Core Drill Bits). A powerful and durable hammer mechanism lets you drill deeper, larger holes in masonry and concrete in less time than with hammer drills.

For SDS-Plus Bit Shanks—Also known as SDS-Drive rotary hammers, these are lightweight and ideal for overhead work and drilling smaller holes. A powerful and durable hammer mechanism lets you drill deeper, larger holes in masonry and concrete in less time than with hammer drills. Use with SDS-Plus drill bits. Note: SDS-Plus and SDS-Max bits are not interchangeable.

For SDS-Max Bit Shanks—A deeper drive system minimizes wobble for straighter, more accurate holes and better overall performance to other rotary hammers. A powerful and durable hammer mechanism lets you drill deeper, larger holes in masonry and concrete in less time than with hammer drills. Use with SDS-Max drill bits (see SDS-Max-Shank Masonry Drill Bits and SDS-Max-Shank Core Drill Bits). Note: SDS-Plus and SDS-Max bits are not interchangeable.

12 Chisel Lock Positions and 36 Chisel Lock Positions—A chisel lock allows you to choose from 12 or 36 chisel positions to match the angle of many surfaces.

Model Number RH1255VC—Model number RH1255VC provides smooth starts and won't slow down as you drill deeper.

Built-In Safety Clutch—A built-in safety clutch protects you and the hammer if the bit gets stuck in your material.

Vibration Reduction—These rotary hammers have a vibration reduction system for increased user comfort, provides smooth starts, and won't slow down as you drill deeper.

		For Max. Rotary Hammer Bit Size for Concrete
	Style	Drill Bit	Core Drill Bit	Max. No-Load Rotational Speed, rpm	Max. No-Load Blows per min.	No. of Chisel Lock Positions	Overall Lg.	Wt., lb.	Current, amp	Gear Housing Material	Mfr. Model No.	Certification	Features		Each
For Spline Bit Shanks



		A	1 5/8"	4 1/8"	300	2,900	12	18 13/16"	14.5	13	Metal	11265EVS	UL Listed	Built-In Safety Clutch Chisel Lock Cushioned Grip Service-Reminder Light Vibration Reduction	0000000	0000000


		For SDS-Plus Bit Shanks



				B	1"	—	1,300	5,100	36	15"	6.4	8	—	GBH2-26	CSA-US Certified, UL Listed	Built-In Safety Clutch Chisel Lock	00000000	000000


				C	1"	—	1,300	5,800	36	17 1/4"	7	7.5	—	11255VSR	UL Listed	Built-In Safety Clutch Chisel Lock	00000000	000000
				D	1 1/8"	—	900	3,800	36	13 5/8"	8	8	—	RH328VCQ GBH3-28	UL Listed	Built-In Safety Clutch Chisel Lock	00000000	000000


				For SDS-Max Bit Shanks



						E	1 9/16"	4"	300	2,900	12	19"	15.2	12	Metal	RH540M	UL Listed	Built-In Safety Clutch Chisel Lock	00000000	000000


						E	2"	6"	200	2,150	12	23 1/2"	30	15	Metal	RH1255VC	C-UL Listed, CSA Certified, CSA-US Certified, ETL Listed, UL Listed	Built-In Safety Clutch Chisel Lock Cushioned Grip Service-Reminder Light	00000000	00000000

Bosch Electric Hammer Drills

Just push a switch and this tool will change from a standard electric drill to a hammer drill.

The rotary-only mode is for general purpose drilling and driving fasteners. Use this mode with standard drill bits for wood and metal. In rotary-percussion mode, the tool provides both a rotary drilling and hammering action. The hammering action pounds concrete and masonry, which breaks up the material while it drills. Use this mode for drilling masonry materials using carbide-tipped masonry drill bits.

This drill has a variable speed motor—the further you depress the trigger, the faster the drill rotates.

Keyed Chuck—Drills with keyed chuck can be tightened with the included key.

	For Max. Drill Bit Size for Concrete	For Max. Drill Bit Size for Steel	Max. No-Load Rotational Speed, rpm	Max. No-Load Blows per min.	Chuck Type	Chuck Key Included	Current, amp	Gear Housing Material	Overall Lg.	Wt., lb.	Mfr. Model No.	Certification	Features		Each
Pistol Grip



	1/2"	3/4"	1/2"	3,200	51,000	Keyed	Yes	8.5	Metal	13 1/2"	6	HD18-2	CSA Certified, UL Listed	Auxiliary 360° Handle	0000000	0000000