Drill Bit Angle
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What is a pilot drill bit? Is it different from an ordinary drill bit?
Am I safe to use a 4mm normal masonary drill bit as a pilot, or do I need something different?
I’ve got some screws which can go straight in to masonary/brick walls – which suits me cause I usually have nig trouble trying to fit plugs in to walls.
quote: “No need for a plug or anchor sleeve! Just drill through the part being fixed to the masonry, then drive the screw in. Dual angle thread with hi-lo threadform. Extra hard steel with chromate finish.”
but…..
quote: “Use 4mm pilot for 4.8mm screws and 5mm drill for 6.4mm screws.”
***Am I safe to use a 4mm normal masonary drill bit as a pilot for my 4.8mm special masonary screws, or do I need something different ? I don’t want to leave a big nasty hole in the wall from using the wrong sort of drill bit. Thanks.***
I have used these masonary screws, but in much larger sizes. From your quote, you MUST use a 4mm masonary drill, its not a pilot hole for a larger drill size, but a pilot hole to put the bolt into. The 0.8mm difference is for the hardened thread to cut into for a grip, i.e. 0.4mm all round. If you make the hole any bigger than 4.0mm the screw will just slide in!
Here are some excellent bargains on ebay for Drill Bit Angle
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90 Degree Angled Drill Head New W/Chuck Tool Wood Bit Get to Hard to Reach spots $14.97 |
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ANGLE DRIVER KIT BY BLACK ROCK TOOLS ( INC DRILL BITS/ SCREWS CONCRETE ANCHORS ) $6.99 |
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90 Degree Angled Drill Head New W/Chuck Tool Wood Bit Get to Hard to Reach spots $9.87 |
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MILL / MILLING / BRIDGEPORT / // 5” 90 DEGREE ANGLE MOUNTING PLATE $15.00 |
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7 Pcs Titanium Coated Multi-Angle Drill Neiko Bits Set Hole Saws Fast Smooth Cut $26.99 |
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4 PC Multi-Angle Direction Drill Bits Routing Milling Set 3/8″ 1/2″ 3/4″ & 1″ $14.99 |
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Milwaukee 1107-1 right angle reversible drill plus 16 heavy duty drill bits, box $199.00 |
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Milwaukee 1/2″ Right Angle Drill, 1107-1, with BONUS Auger Bits 99 NO RESERVE! $105.00 |
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FREE SHIPPING-Milescraft Drive 90 Right Angle Attachment #13020703 $19.99 |
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Milwaukee 48-32-2100 NEW OFF-SET Angle Screwdriver Head $27.99 |
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Makita 3/8″ ANGLE DRILL WITH LED LIGHT New $299.47 |
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NEW Drill Right Angle Drive Pack Misc Drill Accessories 17171 045325171714 $26.55 |
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1″ Dual Blade 60 deg. angle tenon cutter, log furniture $250.00 |
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4 PC MULTI-ANGLE DIRECTION Drill Bits Forstner Routing Milling MAD SAE $13.99 |
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5 PC STUBBY SHORT DRILL BIT SET FOR ANGLE DRILL STEEL METAL CUTTING $24.99 |
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Drill Driver Bit Set Milwaukee 49 22 8510 Right Angle Attachment Kit Tool Power $57.74 |
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Drill Driver Bit Set Skil 2354 02 4 Volt Max Li Ion With Right Angle Attachment $59.27 |
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Vermont American 17172 Dual-Speed Angle Drive Kit Model $15.00 |
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Milwaukee Right Angle Drive Kit – MIL48-32-2100 $33.48 |
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Baker & Hamilton Multi-Angle Drill Bits $12.99 |
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Chicago Electric 3/8″ Angle Drill Attachment with Keyless Chuck $29.99 |
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Dewalt Heavy Duty 20 Degree Angle Galvanized Finish Nai $14.99 |
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Milwaukee 49-22-8510 Right Angle Drill Attachment NEW $44.99 |
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Right Angle Adapter 90° Power Drill Attachment $13.95 |
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Vermont American 17171 Dual-Speed Angle Drive Kit $8.00 |
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ROCKWELL 3RILL RIGHT ANGLE DRIVER ACCESSORY RW9273 $23.95 |
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Bosch Right angle SDS Adapter $180.00 |
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4PC SAE MULTI ANGLE (MAD) FORSTNER DRILL BIT SET+ CASE $9.50 |
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Black&Decker 3 Pcs Multiple Angle drill Bits & Clear Case Model Number 71-111 $12.95 |
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Milwaukee 49-22-8510 Right Angle Drill Attachment Kit $52.00 |
And a few more great deals on Amazon:
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DEWALT DW2169 Impact-Driver-Ready Accessory Set, 38-Piece $59.38 DEWALT’s DW2169 38-piece impact-driver-ready accessory set contains a wide array of add-ons that expand the task possibilities of an impact driver. It’s an ideal set for any contractor, construction worker, electricians, cabinet installer, DIY enthusiast, or other impact driver user who wants to increase the amount of jobs and situations within which they can use their impact driver. DW2169 38-Pi… |
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5x 45° Summa D Sign Vinyl Cutter Cutting Plotter Blade $22.00 Shipping: Quality is Guarantee, Item will be shipped from china and will take about 10-20 workingdays to arrive…. |
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5x 60° Summa D Sign Vinyl Cutter Cutting Plotter Blade $22.00 Shipping: Quality is Guarantee, Item will be shipped from china and will take about 10-20 workingdays to arrive…. |
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VideoSecu Articulating LCD LED TV Wall Mount Full Motion Tilt Swivel Mount Bracket for 22 to 37 Flat Screen with VESA 100 200 Mount Pattern 1XE $19.90 The VideoSecu articulating mount support most mid size flat panels up to 55 lbs (25 kg) with VESA 75×75/100×100/200×100/200x200mm. This is one of the popular medium size TV mount, with heavy duty steel construction. The two-link arm design provides up to 170 degrees of swivel, 15 degrees tilt up or down, and 3″-20″ extension, make it easier for get perfect viewing angle. It also offers 5 degrees r… |
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OmniMount OMF Mounting System for 13 to 42-Inch Flat Panel Televisions (Silver) $39.95 FITS 13” 42” FLAT PANEL TVS4 SEPARATE MOUNTS FIT ANY HOLE PATTERN SUPPORTS UP TO 40 LBS IN DRYWALL OR 80 LBS IN A SINGLE-STUD OR MASONRYLOW 1.25″ MOUNTING PROFILEUNIVERSAL & VESA COMPLIANT FROM 100 X 100 TO 400 X 400 PATTERNS4 SEPARATE MOUNTS WORK WITH ANY HOLE PATTERNLIFT N’ LOCK ALLOWS EASY ATTACHING OF FLAT PANEL TO THE MOUNTFAST INSTALLATION INCLUDES HARDWARE KIT DRILL BIT LEVEL & VESA TEMPL… |
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Drill Grinder Sharping tool GS-11 and GS-21