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Average Customer Review
 4.7 (26 customer reviews)
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4 out of 4 people found the following review helpful
  This pencil is a must..., October 3, 2010
By Are...
This pencil is a must buy it has every thing. It its a shaker pencil and it has an on and off for putting in new lead. Another pro is how perfectly its wheighted for writing. I like writing in a thin line and this pencil is perfect for the neat freak because it wont get writing on the bottom of your pencil case. All my other pencils are more thick. This one is thin and perfect for writing essays. The price is great too for a whopping 7.50$ it's a must buy. I have used obly this pencil for a 2 month's now.
1 out of 1 people found the following review helpful
  I am writing this review..., August 16, 2013
I am writing this review to discuss how this pencil is at one particular task: doing math. I study a lot of math in my spare time in preparation to eventually go to graduate school for math. I have filled hundreds of notebook pages with equations and calculations over the past several months using a variety of pencils, but I always seem to come back to the Pilot Delful Double Knock pencil.

Being left-handed, it is hard to a find a pencil that is comfortable and forgiving while keeping my work neat. Yet there is something about the weight balance of this pencil that makes it incredibly comfortable to do hours of calculations without any fatigue. I like to hold my pencil very close to the tip and the rubber grip extends farther than most pencils making it comfortable to hold without slipping. I find that my numbers, fraction lines, and symbols come out looking neater with this pencil compared to other pencils, maybe due to its wider grip.

The shaker mechanism is excellent and extends the perfect amount of lead with two shakes. This pencil makes a great combination with a high quality softer lead like 2B or 3B for crisp, dark numbers because the lead is so easy to advance. As for the retractable tip, I don't use this feature often as I just leave the pencil on my desk when not in use, but I imagine it would be useful when taking the pencil with you. I also don't use the traditional lead advance very often, but it's nice to know that there is a backup in case the shaker mechanism fails. But honestly, if that happens I will probably just order a replacement Delful as I like the shaker mechanism so much.

I recommend this pencil to anyone wanting a quality reliable pencil for doing math or physical sciences with lots of pencil and paper calculations involved. I have used the original Uni Kuru Toga, the Kuru Toga Roulette Model, the Pentel Smash, the Alpha Gel HD Shaka, and the Pilot Opt I and Opt II pencils and I keep going back to this one. I love this pencil.

-perfect weight balance (slightly tip-heavy)
-firm rubber grip
-excellent shaker mechanism
-wide body for more comfort
-writes very smoothly
-holds plenty of lead
-good eraser
-very durable
-excellent value for price

-limited color variety (black with orange would be nice)
-the eraser cover is easy to lose
-doesn't love me back
1 out of 1 people found the following review helpful
  Love this line of pencils...., March 22, 2013
By ent...
Love this line of pencils. Picked up one right away when there were only a couple of colors and quickly added more once more variations became available.

I agree with all of the other reviews so no need to repeat them, but do have a solution that works for me for those complaining of the lead extending when closing the pencil down.

When I am ready to put it away, I first push down the cap enough to extend the lead, then without releasing, I push the lead all the way in (as with a regular lead pencil), then with the same motion, continue to press the cap to activate the double action which will allow the pencil to close without any lead extended.
1 out of 1 people found the following review helpful
   I like the..., December 8, 2011
I like the looks, but there are only a few small problems I had: After you shake to advance the lead, it goes back into the tip slightly due to the looseness of the metal tip. It drives me crazy, but I can live with it. Another thing is that when you retract the pencil, a small amount of lead is advanced so there is a worrisome bit of lead still sticking out. But, this pencil is overall a good instrument for writing, etc., even though the grip is a little uncomfortable.
1 out of 1 people found the following review helpful
  well built pencil. The..., April 6, 2011
well built pencil. The tip doesn't wobble at all, which is an issue with some retracting pencils. I've never dropped it or anything, but the lead tends to break WAY too easily. Makes me wonder if the lead isn't supported at the tip of the metal outlet, or if my tip is bent.

I've never dropped it though. I use the exact same lead in other pencils and it never breaks.

I'm giving it four stars because it may just be me using excessive force. It's a wide pencil and I do find myself pushing harder than i do with other pencils.
1 out of 1 people found the following review helpful
  This is one of the best..., March 22, 2011
By kac...
This is one of the best pencils that you will ever find. I bring this everyday and never let's me down. If anyone that does not write lightly and writes really fast will need to buy a lot of lead. In mine I put like 3 extra sticks of lead just to make sure I won't run out. The double knock action is just awesome. This pencil is very hard to find. I have never found this in a store. The green on this one is like an apple green. The other one with the blue looks good but not like this one. Overall this is the best pencil you can find at this price. It basically has everything you need for this price. For me I give this a 4 1/2 but I will round it up to a 5 stars
1 out of 1 people found the following review helpful
  Great pencil! The weight..., March 18, 2011
Great pencil! The weight is nice, due to the shaker mechanism, which makes it well balanced. One of the best mechanical pencils I've used.
1 out of 1 people found the following review helpful
  Just bought 3 of these..., February 26, 2011
Just bought 3 of these pens and they are very high quality for the price! Love the double knock action!
1 out of 1 people found the following review helpful
  this is the best ever!..., February 14, 2011
this is the best ever! i like how it retracts so it doesnt damage any pockets or other things. the color and design is awesome too. i always use this pencil since it writes really smoothly and cleanly.
1 out of 1 people found the following review helpful
  pretty fast delivery..., January 18, 2011
By win...
pretty fast delivery in canada great product
1 out of 1 people found the following review helpful
  I already ordered on..., January 6, 2011
I already ordered on Tuesday and i might get this pencil tommorow. (i think)
anyways my friends hav this type of pencil and its pretty good.......=)
1 out of 1 people found the following review helpful
  This is easily the best..., November 24, 2010
This is easily the best mechanical pencil I have ever owned. I don't regret paying $7.50 for it at ALL, and plan on buying a couple more when the stock turns over. I have the pink and orange one, but I'd like to get the black and pink one, as well.

The weight of the pencil and its shape are my favorite parts; I have large hands and it's exceedingly easy for me to use. I can write pages of notes without my hands getting tired.
1 out of 1 people found the following review helpful
  awesome pencil. very..., November 14, 2010
By bas...
awesome pencil. very high quality. dubbleknock function is awesome, very sturdy, shaker mechanism is great the lead comes out much faster than my old Dr. grip which i lost =(. would definitely recommend this to anyone.
1 out of 1 people found the following review helpful
  Excellent pencil!! I..., November 5, 2010
By ctc...
Excellent pencil!! I enjoy writing with it and it looks great. I normally use 0.7 or 0.9 so I think I will need to order some harder leads. Or they could make a 0.7 and 0.9 versions!
1 out of 1 people found the following review helpful
  This is one of the coolest..., November 1, 2010
This is one of the coolest mechanical pencils i have ever used!!! This is not your typical MADE IN CHINA pencil, no, no, no,no, this is MADE IN JAPAN!!!! The best quality smooth writting, the paint will not chip, will last a lifetime, what more can you ask for!!! A must buy!! 5/5!
1 out of 1 people found the following review helpful
  Amazing pencil! Can't..., October 20, 2010
Amazing pencil! Can't wait until you restock the other colors. The size and weight are wonderful, bigger than I expected, but very solid and balanced. Plus the shaker mechanism is great in a pencil with a bigger grip. I had the original Pilot Shaker a long time ago, but the grip was much more narrow and not really made for writing.
1 out of 1 people found the following review helpful
  The Pilot Delful mechanical..., September 23, 2010
The Pilot Delful mechanical pencil is absolutely wonderful. The double knock design comes from one of Pentel's pencils named the Technica-X which has been a long time favorite of mine. Much to my delight, Pilot took this concept a step further in incorporating their famous shaker mechanism. This pencil has a great outer casing and feels light but sturdy. All the mechanisms are solid and move smoothly to provide a seamless writing experience. This is definitely my new favorite mechanical pencil, and all for only $7.50. The Pilot Delful is a must buy for anyone looking for a great new pencil and a minimum price.

Some things I would still like to see incorporated in the future:
- Pilot should use their better Dr. Grip grip on this pencil
- I would love to have an extend-able eraser
- Stock more colors (I want to buy at least one more, but there are only two colors to choose from currently.)
  Absolutely love it! When..., April 15, 2014
By tin...
Absolutely love it! When I read the reviews on this mechanical pencil and hearing how good it is, I wanted to try it out for myself. Now since I purchased one, it is now my favorite. I love how smooth it is when I write and how cool it looks. It's also very comfortable to me, rather than the older mechanical pencils I grew up using.
  This pencil is not for..., April 2, 2014
This pencil is not for jittery or active writers. I have a tendency to wag my pencil back and forth nervously when deep in thought, or click the retract button at the top of the pencil twice out of nervous habit. This pencil does not take kindly to those habits, as the lead is extracted from either of those actions. So I'm left with a bunch of lead sticking out of the pencil, and then I have to break off the lead in order to get back a manageable length of lead. I could probably live with just the shaking activating the lead extraction, but because both the shaking and the retract button activate the lead, I'll be burning through a lot of lead writing with this.
  This pencil I had for..., February 8, 2013
This pencil I had for 4 years. It was the only pencil I used. It was the best pencil ever. Now I need to get another because I lost it. :( Siiigh. Hopefully I won't lose it again. This really is the best. pencil. ever. <3
  I think it's great for..., September 19, 2012
I think it's great for the price! I've had this pencil for exactly two years. I'm going to start with the cons. The grip is breaking now, but it is great for two years (I write very hard). The shaker sometimes doesn't work, or sometimes I have to shake more than I'd want to get some lead out, but this pencil also works like a regular mechanical pencil (without shaking) so it was it fine. Finally, sometimes my lead would get lodged in the inside so I'd have to take the pencil apart to take the lead out and make it work again. It sometimes got annoying, especially during exams! I really did love this pencil though. I'm studying engineering, so I did a looot of writing with this baby. It's dying on me now since the shaker recently stopped working and the grip looks like I've been chewing it :/ but it's only because it's worn out. I used this pencil for all of my classes so far. It lasted me a very long time! I loved this pencil.
  The perfect mechanical..., September 11, 2012
The perfect mechanical pencil for me!

-I love the visual style of the mechanical pencil.
-Writes precisely and smoothly. The tip doesn't wobble and holds the lead well.
-I love the retractable tip! This helps protect the tip of the pencil and also protects my pocket from getting holes in it.
-The weight/heft is perfect!
-The grip is a firm one which I prefer. The thickness is just right.
-The shaker advance system for the lead works great.

-Hard to find this pencil.

Additional note:
I liked this mechanical pencil so much, I picked up a second one for at home and am sending one to each of my 4 nieces and 2 nephews.
  So I got this pencil..., June 18, 2012
By shi...
So I got this pencil at the beginning of my senior year of high school. Since then to this day after one year of college, it is the ONLY PENCIL I USED EVER on tests, on scantrons, on papers, anything and everything. It is one of the most versatile pencils ever. My only issue is the tiny eraser, but I love my pentel hi-polymer eraser to tidy up my mistakes. This pencil will probably be the only pencil I use ever. It is a necessity in my arsenal of writing instruments. :)
  This is a terrific pencil..., February 20, 2012
By don...
This is a terrific pencil for the price. It feels sturdy and I like the lead-shaking mechanism. I filled it with Pentel Stein HB lead and it writes like a dream. I'm considering getting these as stocking stuffers for my family next Christmas!
  this i s good! i jammed..., April 19, 2011
By Sta...
this i s good! i jammed it by pushing the middle clear plastic part in the wrong way so... the shaky jammed good pencil