QUOTE(hirano @ Nov 5 2020, 08:32 PM)
1) I saw in shopee, there's also Rotary Drill and Rotary Hammer. Different usage?
https://shopee.com.my/product/12851682/1002...17-1604579357.9https://shopee.com.my/product/12851682/2969...17-1604579370.9Rotary drill = turn circles only. Same as the hand drill in school. Typically only accepts round shank bits.
Impact drill = turn circles and
using plastic toy hammer to
many tens of thousands of plastic hammer impact per min so it is only good for light duty (brick wall). Typically accepts round shank bits.
Rotary hammer = turn circles and use a piston design to really drive the drill bit like
of just 1-2k strong punches per minute.
Accepts slotted heavy duty SDS Plus bits.Demolition hammer using SDS Max used on building construction site - extreme duty - no need to mention, that is overkill (portable muhammad ali).
2) so if my main purpose is drilling to insert screws into concrete walls, i need only a rotary hammer right? The 2nd link above?
Yes a rotary hammer is what you need for concrete.
GBH 2-24 DRE Rotary Hammer with SDS-plus
u can get for about 430-440 for this model from other seller like geolaser or intechmachinery or protools or jiayiwg89 or happyyow instead of official mall geh.
These are the ones I am happy buying from.
Some other hardware shop lixxhxxhxxxxxxx tarak bagus, keep my order waiting for two months during MCO and never ship out.
U can verify their shop on bosch authorised dealer list on the bosch malaysia site. Only thing, they may not throw in free bits but the diff in price, you can get own bits, and if you not using the "free chisel" then can just buy tool only (confirm it come with the hard case before buying).
SDS Plus bits
u can see what size u need, wall plug one is usually 5.5 (narrow plug and narrow screw) or 6mm for easy fit (fatter plug and screw)
just because its a bosch tool, no need to buy bosch bit, u can use makita or hitachi or other brand bits janji its SDS Plus bit - for SDS Plus tool (common standard).
Bits about 20 bucks or cheaper if u can find them in a 5-bit pack.
https://shopee.com.my/Hikoki---Hitachi-5pcs...bRoCcG4QAvD_BwEhttps://shopee.com.my/-100-ORIGINAL-MAKITA-...5758.6934793737CHUCK ADAPTER
this is used for adapting the round shank bits to the SDS Plus tool. typically 10-15 bucks.
It is used if u wanna drill metal or wood with the rotary hammer, these materials are NOT repeat NOT using impact function so the bits always come in round shank.
the chuck adapter CANNOT be used in impact mode (impact-only means bangwall without turning, used for chiselling the wall / rotary hammer means turn and bang).
https://shopee.com.my/-100-ORIGINAL-MAKITA-...5758.6934793737This post has been edited by ceo684: Nov 5 2020, 08:58 PM 
Sep 14 2020, 11:55 AM
Quote
Right product and will suit your purpose fine.
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