how to: do you know this? the core bit is not running evenly, the cordless screwdriver is not held properly and slips, and the hole for the switch or socket is not drilled out cleanly and the cavity wall box slips through the plasterboard! Now you could fix it with a bit of adhesive tape around the box or replace the top plasterboard and fill everything again. Far too complicated! There is a simple, cheap and quick solution. Just watch and comment, but please pay attention to the netiquette! Thank you in advance. Enjoy watching. Instagram: @dertrockenbauer PayPal.Me/dertrockenbauer This is a private hobby video in which I show how I solve my projects and tasks! This video is not an instructional video and is not intended to encourage imitation! All information and tips are without guarantee! Everyone is responsible for their own actions and mistakes! The general occupational health and safety regulations must be observed for all work! I accept no liability for damage or injury! Disclaimer: The author assumes no liability for the topicality, correctness, completeness or quality of the information provided. Liability claims against the author relating to material or immaterial damage caused by the use or non-use of the information provided or by the use of incorrect and incomplete information are fundamentally excluded. Here is a list of the materials and tools I used. This is the Amazon affiliate program, which does not incur any additional costs for you. Kaiser hollow wall compensation ring - https://amzn.to/36ggwbf Bosch Professional Expert Tough hole saw Ø 68 mm - https://amzn.to/3KZJdYY Bosch Professional hole saw with edge countersink - https://amzn.to/36auiMw Bosch Professional measuring stick GR 500 - https://amzn.to/3yD6gDT Bosch line laser GLL 3-80 CG - https://amzn.to/2TiMFpN STABILA spirit level Type 80 AS-2, 180 cm - https://amzn.to/3k2zFAC Profile composite pliers - https://amzn.to/2B3HIaG Bosch hammer drill GBH 18V-21 - https://amzn.to/3jtlncM Door jamb angle set 75mm - https://amzn.to/32eMylG Knauf universal screw FN - https://amzn.to/3GVWFeh Milwaukee magnetic bit holder - https://amzn.to/3AIygpe Bosch drywall screwdriver GSR 18V-EC TE - https://amzn.to/3qydIeh Bosch Multi Cutter GOP 12V-28 - https://amzn.to/2Ugdatb Bosch Professional 1x Expert 'Wood with Metal Demolition' S 1167 XHM reciprocating saw blade - https://amzn.to/3hLspZA Profile connector screws Pianos 4.2 x 13 mm - https://amzn.to/3CCYHgR Bosch 18V GSR 18V-60 C - https://amzn.to/2CN4d3C TOX adjusting screw 6 x 80 - https://amzn.to/3yQ6PcO BTI Drilltec BS Z 5.0 x 50 stainless steel screws - https://amzn.to/31P1lkZ Stanley construction square, foldable - https://amzn.to/3qXZ96X DeWALT DDF5110500 C5-Trak-It gas nailer - https://amzn.to/33cV5nGBosch STABILA spirit level type 96-2 M, 61 cm - https://amzn.to/3EvJ3G2 MUNGO 6x40 ceiling anchor, galvanized with approval - https://amzn.to/3nBGVWY Bosch drywall screwdriver GSR 18V-EC TE - https://amzn.to/3qydIeh Bosch impact wrench GDS 18V-300 - https://amzn.to/3C5mAOB Bosch cordless circular saw GKS 18V-68 GC - https://amzn.to/3mDgr5M Würth 1K foam gun Purlogic Express - https://amzn.to/3Auvxzr 12x Soudal Soudafoam Gun B2 gun foam - https://amzn.to/3DuIWJD Bosch 18V cordless reciprocating saw GSA 18 V-LI - https://amzn.to/3EzKzH8 Makita bit set 22-piece with carabiner - https://amzn.to/38imlmd Tool vest - https://amzn.to/2S5GRQu Bosch 18V cordless planer GHO 18 V-LI - https://amzn.to/3sz3uN1 Festool - cordless impact drill - https://amzn.to/2VX5Uc0 Bosch GKM 18 V-LI metal cordless circular saw - https://amzn.to/2XtBUkM Bosch laser distance meter DLE 40 - https://amzn.to/2B7gIqD Bosch cordless jigsaw GST 18 V-LI S - https://amzn.to/39YhFTp Bosch jigsaw blade set 10 pcs. (metal) - https://amzn.to/3wWhH8u Power tools: Bosch cordless angle grinder GWS 18-125 V-LI - https://amzn.to/34MsvJG Bosch cordless band saw GCB 18V-63 - https://amzn.to/38CtTjk Bosch cordless impact wrench - https://amzn.to/2XokLZE Bosch GWS 12V-76 Mini-Flex 76 mm - https://amzn.to/2EAnfwd Bosch cordless screwdriver GSR 12V-15 - https://amzn.to/2Sa4Aij Bosch GRO 12 V-35 cordless rotary tool - https://amzn.to/2RVbV6g Bosch 120 C inspection camera - https://amzn.to/2SSjV4m Festool cordless impact drill PDC 18/4 Li - https://amzn.to/2CKjcLD Festool plunge saw set TS 55 RQ Plus Set - https://amzn.to/2DzYqjj Mixer - https://amzn.to/34Tff3D Bosch laser receiver LR 7 - https://amzn.to/2FHK8NS Bosch Professional ceiling clamp BM 1 - https://amzn.to/381KtHd DeWALT DDF5110500 C5-Trak-It gas nailer - https://amzn.to/33cV5nGBosch hand tools: knives - https://amzn.to/2B5HmQR Universal hole saw set Deep Cut - https://amzn.to/2SKH6xq Ripping plasterboard edge planer - https://amzn.to/3ddGZoW