STORAGE CONTAINERS for this set are Available on this page at the section " Make it a bundle" FTG countersink set + 6 Storage containers (in a bundle) = FTG countersink set + 99 cents FTG Parabolic Flute Adjustable Wood Countersink Set with Tapered HSS Drill Bit, Nickel coated 1/4" Hex Shank, and #45 Carbon Steel 4 Flute cutter, sizes #6 (9/64") #8 (11/64") #10 (3/16") with 1 Adjustable Depth Stop Collar 3/8" and 1 Hex Wrench (1/8" Allen Key). The geometry of the FTG twist drill is altered to improve chip extraction which improves heat dissipation within the cut. FTG 6810PRBH features the best tapered drill bits HSS M2 Grade 6542, confirmed in Certificate of Analysis issued in June 18th 2021 by ANAB Accredited Lab, and provided at Product guides and documents section below, by far the most popular High Speed Steel, with superior properties, including high toughness, wear resistance, and good cutting retention. Logo brand FTG USA and size is laser printed on each nickel coated hex shank, (all cutters have same size of 3/8") making it easier to differentiate this quality brand from others. Super sharp, very durable, easy to use, and built to perform well in both hard and soft woods Drill, countersink and counter-bore in 1 step. Countersink #6 Bit Diameter 9/64" (3,6mm) , counter-bore size and plug size 3/8", using Adjustable depth stop collar 3/8" Countersink #8 Bit Diameter 11/64" (4,4mm) , counter-bore size and plug size 3/8 ", using Adjustable depth stop collar 3/8" Countersink #10 Bit Diameter 3/16" (4.8mm), counter-bore size and plug size 3/8", using Adjustable depth stop collar 3/8" Top quality material #45 Carbon Steel adjustable four-cutter counter bore, chamfer angle 82 degree, attachment that cuts fast and clears chips quickly for fast, smooth countersinking applications. The counter-bore feature attaches flats with 2 hex screws for a secure fit and can be adjusted for controlled pilot hole depth providing a clean finish for more polished final products. 1 Piece Hex Key (1/8" Allen Wrench) and 1 Piece 3/8" Adjustable Depth Stop Collar are included. Industry grade 6542 High Speed Steel HSS M2 drill bit set, harder than 4241 HSS and 4341 HSS used in other similar countersink drill bits. Replacement Tapered Drill Bits are available on FTG USA brand store: www.amazon.com/FTGUSA This product is designed in New Jersey by Fair Trade Group USA and Professionally manufactured in China at FTG USA specifications. Packaging set combination/design protected by US Copyright Office. FTG PARABOLIC Flute Adjustable Wood Countersink Set #6 #8 #10 HSS M2 Tapered Drill Bit with 1/4" Hex Shank - Depth Stop Collar (3/8") and Hex Wrench Top Quality Material Component: High Speed Steel HSS M2 Grade 6542 confirmed in 6/18/2021 Certificate of Analysis Report provided at Product Documents FTG Parabolic Flute offers wider flute space, dispersing chips away from the cutting edges more rapidly and increasing coolant flow. The parabolic spiral allows chips to flow up quickly leaving less damage to be corrected after drilling. Tapered drill bit HSS M2 (Grade 6542), 4 flute cutter #45 Carbon Steel; featuring 3 Piece Depth Adjustable Wood Countersink, #6 (9/64"), #8 (11/64"), #10 (3/16"), 1 Piece 3/8" Depth Adjustable Stop Collar, and 1 Hex Wrench; Drill, countersink and counter-bore in 1 stepImproved chip evacuation leads to a better surface finish in the hole. FTG Parabolic Flute allows chips to flow up quickly leaving less damage to be corrected after drilling. The parabolic drill tip can slip-on wood surfaces; it is recommended to hold it rigidly and drill slowly until the tip grabs the material. Adjustable 4-cutter counter-bore #45 Carbon Steel, chamfer angle 82 degree, cuts and clears chips quicker for fast, smooth countersinking tapered holes for screwsFTG Parabolic Flute drill bits are higher quality cutters due to their unique design, with improved chip extraction. Tapered drill bits can be replaced with a replacement bit of the same type and sizes (sold separately) for extended life; Logo, and drill bit size are laser printed on each straight shank. Higher Quality cutters FTG Parabolic Flute drill bits are manufactured from premium High Speed Steel M2 Grade 6542. Parabolic flutes are constructed with a wider flute shape for increased chip flow. Quality built counter-bore attaches to flats on shank with 2 hex screws for a secure fit and can be adjusted for controlled pilot hole depth; 1 Piece Adjustable Depth Stop collar (3/8") and 1 Hex Key 1/8" (Allen Wrench) are includedThis product is designed in New Jersey by Fair Trade Group USA and Professionally manufactured in China at FTG USA specifications; Packaging set combination/design protected by US Copyright Office FTG PARABOLIC FLUTE Countersink Set #6 (9/64") #8 (11/64") #10 (3/16") THIRD-PARTY TESTED by US Accredited Lab - High Speed Steel M2 Grade 6542 FTG Parabolic Flute allows chips to flow up quickly leaving less damage to be corrected after drilling. Parabolic flutes are constructed with a wider flute shape for increased chip flow. This product is designed in New Jersey by Fair Trade Group USA and Professionally manufactured in China at FTG USA specifications FTG 6810PRB packaging protected by Copyright FTG Parabolic Flute geometry of the twist drill bit is altered to improve chip extraction. This product is designed in New Jersey by Fair Trade Group USA LLC and Professionally manufactured in China at FTG USA specifications; Packaging set combination/design protected by US Copyright Office Purchased in Bundle, FTG countersink set + 6 Storage containers = the cost of FTG countersink set + 99 cents Logo brand laser printed on each countersink shank offering confidence in product authenticity Countersink #6 Bit Diameter 9/64" (3,6mm) , counter-bore size and plug size 3/8", using Depth Stop Collar 3/8" Countersink #8 Bit Diameter 11/64" (4,4mm) , counter-bore size and plug size 3/8 ", using Depth Stop Collar 3/8" Countersink #10 Bit Diameter 3/16" (4.8mm), counter-bore size and plug size 3/8", using Depth Stop Collar 3/8" Analysis Report issued June 18th 2021 by Accredited Lab confirms FTG USA drill bits Steel Quality Grade meets the desired specs. of HSS M2 Grade 6542 Industrial-strength 6542 High Speed Steel HSS M2 drill bit set, harder than 4241 HSS and 4341 HSS used in other similar countersink drill bits - As opposed to other manufacturers, we provide Test Reports issued by US Third-Party Accredited Testing Laboratory - Top Quality Steel used in FTG USA drill bits confirmed in Certificate of Analysis Report issued by US ANAB Accredited Lab - Our drill bits are made of confirmed Industrial-strength HSS M2 Grade 6542, harder than 4241 HSS and 4341 HSS used in other similar countersink drill bits - FTG Parabolic Flute drill bits drill holes faster, due to their unique design, with improved chip extraction - The Parabolic spiral allows chips to flow up quickly leaving less damage to be corrected after drilling - The Parabolic drill tip can slip-on wood surfaces; it is recommended to hold it rigidly and drill slowly until the tip grabs the material - IT IS RECOMMENDED avoiding Parabolic Flute drill bits for sheet metal because the flute shape can cause them to “corkscrew” through the material - The geometry of the twist drill is altered to improve chip extraction which improves heat dissipation within the cut - This product is designed in New Jersey by Fair Trade Group USA LLC and Professionally manufactured in China at FTG USA specifications - High Quality Materials: High Speed Steel M2 Grade 6542 - Replacement Tapered Drill Bits are available on FTG USA brand store: www.amazon.com/FTGUSA QUALITY CUTTERS PARABOLIC DRILL BITS - FTG Parabolic Flute versus FTG Standard Flute Twist Drills FTG Parabolic Flute drill bits drill holes faster than any other drill models - The geometry of the FTG twist drill is altered to improve chip extraction which improves heat dissipation within the cut - FTG Parabolic Flute tapered drill bits can be replaced with a replacement bit of the same type and sizes (sold separately) for extended life - This product is designed in New Jersey by Fair Trade Group USA LLC and Professionally manufactured in China at FTG USA specifications FTG Parabolic Flute Replacement Tapered Drill Bits are available on FTG USA Store: www.amazon.com/ftgusa FTG 2351 Replacement 9/64" (#6) FTG Parabolic Flute Tapered Drill Bits 3 Piece Same Size 9/64" (#6) Replacement FTG Parabolic Flute Tapered Drill Bits Only (without counter-bore cutter) Replacement Tapered Drill Bits are available on FTG USA brand store: www.amazon.com/FTGUSA FTG 2352 Replacement 11/64" (#8) FTG Parabolic Flute Tapered Drill Bits 3 Piece Same Size 11/64" (#8) Replacement FTG Parabolic Flute Tapered Drill Bits Only (without counter-bore cutter) Replacement Tapered Drill Bits are available on FTG USA brand store: www.amazon.com/FTGUSA FTG 2353 Replacement 3/16" (#10) FTG Parabolic Flute Tapered Drill Bits 3 Piece Same Size 3/16" (#10) Replacement FTG Parabolic Flute Tapered Drill Bits Only (without counter-bore cutter) Replacement Tapered Drill Bits are available on FTG USA brand store: www.amazon.com/FTGUSA