Best Helical Tube

Astromania 60mm Compact Deluxe Finder & Guidescope Kit with 1.25' Double Helical Focuser - Guiding with The Mini-Guide Scope: So Astrophotography is Easier and Less Equipment

...rled ring allows easy and precise fine focus adjustments. It comes with matching pipe clamps and a Synta-style mounting plate to make assembly and installation as easy as possible..
Have a built-in worm-focuser with Brass Compression Ring and 2 thumbscrews,45mm focusing range (10mm focusing range with micro-focusing Helical focuser, the rest is by a fixable, scaled drawtube) is made possible by an extremely precise focus adjustment. The mechanism has a determined orientation: This is mounted cameras or eyepieces - and thus also the area with your guide stars - not rotate during focusing..

Versatile 60mm aperture Guide Scope with a built-in helical focuser for precise focusing of potential guide stars.
will help guide you to capturing higher quality astrophotos.
an ideal addition to any astrophotographers collection of gear.
The helical focuser simply moves the attached device inwards or outwards while maintaining its orientation.
this convenient feature means your field of potential guide stars will not rotate as focus is adjusted, further increasing ease of use.
For those nights when you don't plan to capture astrophotos exposures, this versatile Guide Scope can double as a straight-through finder scope with an optional 1.25" eyepiece installed.
For example, inserting a 25 mm eyepiece creates a 9.6x60 finder scope, or you can insert one Illuminated Centering Eyepieces for use as a finder with illuminated crosshairs for easy aiming.
The focuser boasts 8 mm of precise helical focus travel.
plus telescoping drawtube housing provides up to 35mm of additional back-travel if needed for your particular autoguider device.
a compression ring fitting keeps any inserted autoguider cameras or eyepieces free of pesky scratches.
The Multi-Use Guide Scope with Helical Focuser also features male T-threads on the focuser collar f....

Constructed from die cast alloy, allows for very precise and uniform placement of all feathers and vanes.
Right Helical jig comes with a right nock receiver.
Designed to be used with Right Helical clamp ONLY ( Clamp sold separately).

Constructed from die cast alloy, allows for very precise and uniform placement of all feathers and vanes.
Left Helical jig comes with a left nock receiver.
Designed to be used with Left Helical clamp ONLY ( Clamp sold separately).

...ly on the stainless steel handle,without residue bristles when you cleaning.Perfectly used to clean small diameter pipe.Each end of the brush has protective design,not only prevent scratching the items,but also protect you from hurting yourself when cleaning..
【Easy To Use And Store】These pipe cleaning brush are helical,they can contact well with the inner side.Use a mild detergent and warm water,keep the tube as straight possible and gently work the brush in a back and forth motion,in short strokes,gradually working further inside the tube.Avoid aggressive use when cleaning.The handle of the brushes come with a detachable ring for quick and easy storage.You can acoording to your needs to dismantle the brushes,or to hang when not in use..
【Multiple Size】Black ac drain line cleaner tool has 10 pack nylon tube brushes.Flexible double ended hose brush total brush length 61.02 inch/155 cm,big brush diameter is 1.18 inch/30 mm,small brush diameter is 0.6 inch/ 15 mm.
Single-head tube cleaning brush set length:about 8.2 inch/ 210 mm (9 varying Diameters:0.94inch,0.79inch,0.63inch,0.47inch,0.31inch,0.24inch,0.2inch,0.16inch,0.12inch),can clear the dust in the gap and dead corner.Various sizes can meet your different cleaning needs..

Versatile 60mm aperture Guide Scope with a built-in helical focuser for precise focusing of potential guide stars.
Designed for use with the Orion StarShoot AutoGuider and StarShoot AutoGuider Pro (both sold separately).
Helical focuser collar will not rotate attached autoguider devices during focus adjustments.
Can also be used as a deluxe straight-through finder scope with optional 1.25" eyepieces installed (eyepieces sold separately).

...orce , but it will automatically stop sharpening at a perfect point to make your pencils more durable with high economical efficiency..
Adjustable Pencil Tip Thickness : Only need to adjust the button to achieve different pencil tip thickness , very conveniently for better writing or drawing effect..
Replaceable Helical Blade Made of Stainless Steel : The pencil sharpener helical blade is made of stainless steel to support more than 4,000 times of sharpening with longer service life and better durability.The helical blade is replaceable so never need to worry about the damage of it ,only need to replace a new one for normal operation.If you need more spare helical blades, please contact us anytime..
Portable , Safer and More Energy Efficient : Portable pencil sharpener easy to carry , Automatically stop when the lid is open so safer for children and more energy efficient..
Transparent XL Pencil Shavings Bucket : Enough to contain the shavings of multiple sharpening before emptying, Transparent case makes it easy to know when it should be emptied..
Non-slip Base : Non-slip base with 4 rubber pads, makes it more stable in use and not easy to slide..
How to Use : Step 1, Connect the pencil sharpener and power adapter.